angier

It looks like the old Serif Font Manager which I believe was based upon an earlier version of the software. I had version X3.
I found that version to be quite buggy.

https://en.eagle.cool/article/271-tutorial-5-browsing-videos-gifs-audios-files-and-fonts?categoryId=142-category
Also great for so many other formats including the af~files
Both mac and windows

Therapy? Yes! I agree. Here's the thing...
A brand is your face to the world. Fonts carry a message. They speak to a lot of who you are as a company or as a person.
The reason I organize fonts first by the author is because some authors have their own style and design quality. I look for designers who know how to build beautiful fonts with technical excellence. I can't tell you how many times I've loved a font but I've had to go in and fix it because of technical difficulties. And, if an author's style fits the brand or project I'm working on, I will go back to that author to look for similar fonts that will visually work with the brand.
As a freelance designer, I've worked with all kinds of companies. Medical and aesthetic packaging to youth and children's ministry. I'm always looking for the right fit for things. There are days I'm in the mood to search the web and days I'm not. To tell you the truth, the library of fonts I've gathered over the years has helped me tremendously. My library has saved me countless hours from having to search the World Wide Web for the right font fit when a project is due.
Just so you know, my font library is not stored on my main drive. I just purchased a new computer and I think that purchase has inspired me to take my organizational skills to another professional level. Creatively fonts have become so convoluted you can't tell what category you should place certain fonts in. Therefore, I've done a lot of research and have had to figure things out for myself, hence the "over the top" font category list!
In other programs such as Ink Scape, you can link fonts to the software instead of having to install more fonts to your main hard drive. As you probably know, some Affinity projects can get quite heavy. Linking fonts and adding customizable organization folders to the character window will help keep the document size light and save us from having to scroll through fonts that can only be sorted by name.
With all that being said, the title of this post, "Confessions of a Font Hoarder" was to get Affinity's attention. Yes, I was being dramatic but for a good reason!
Mulder, thank you for your response to my post. You're the only one who responded to my theatrical attempt to gain interest in my software enhancement request. Your concern for my well-being is much appreciated. I'm hardly ever on this forum unless I need something but I hope our paths will cross again.
Good luck with everything you create.
Angela
 
 

https://support.apple.com/fr-fr/guide/font-book/welcome/mac 

I don't know why we cannot access the font collections from Font Book in the Context toolbar but we can access then in the Text Styles and Character Panels.
 Font Book Collections
 Character Panel

If Affinity applications don't do a lot as font manager, they at least give access to the various font collections I've defined in macOS FontBook (accessible via the menu in the Character panel, not in the Context toolbar). 

This is also not very much but it is helpful though if you care to organize it… 
I don't know how it behaves with other font manager software or on Windows?

Years ago I had an app on my pc that inspected my fonts and rated them so that I could weed out those that has “issues”. Sadly I forgot what it was called. 

FontExpert is the only one I have seen which is a font database application.
Ideal for the hopeless font addict who is compelled to organize.
(lookin' at you Angela) 😁
I do not need, or want, a font manager that takes complete control of all my fonts.
Too much going on with multiple fonts daily; it just becomes a complete mess.
Use MainType to see what is installed, version installed, and un-install fonts.
Use FontExpert mostly as a font browser - you do not have to make a database, or manage all your fonts, etc. - just right-click a new folder of fonts, preview all of them, look at the info, temp. activate, run some tests, de-activate, and move on...
Constantly installing and un-installing fonts can create quite a mess - especially when the fonts being tested are broken in some way. Too much going on.
So my needs are different than the graphic designer who needs to manage some fonts.
Most of the other apps are more like a work-flow font manager for graphic design users just trying to get stuff done efficiently. With some categorization and search features.
I think Typeface is mentioned the most for Mac users.
Being on Windows I have not tried it, but have seen lots of recommendations.
I have tried both Suitcase Fusion and Font Explorer X on Windows.
Been quite awhile (years), but if I recall correctly...
Did not like Suitcase Fusion at all, and un-installed it right away.
Font Explorer X on Windows was 2-3 versions behind the Mac version, and had zero documentation. And it did not work properly. Gone.
And FontBase is just so basic. Just took a quick look, and then deleted it.
Both MainType and FontExpert have tools to clean-up/fix Windows registry errors for installed fonts. Very useful on Windows. Good font housekeeping tool.
And FontExpert is the only one I have ever seen which can display and edit the Windows operating system font substitutions, which most people should never mess with anyway, but it is interesting. I suspected this was perhaps related to a LibreOffice fonts issue, but have not tested that theory yet (forgot about it until now).

@angier
.... "Typography is my crack." ...
I thought you would like this saying
These are people with a passion

love the movie too
also worth a look is "Christoph Niemann"
from the same series

For Mac users, I'll second Typeface.
I have Suitcase Fusion on my older Macs, but dropped them for newer Macs when they went full evil, er, I mean, subscription, though I did partially enjoy their humorous eMails trying to explain why paying them a subscription benefits my budget somehow.
After that, I switched to another font manager which I didn't find worked as well and ended up with Font Explorer X which wasn't bad but is no longer available.
So, now it's the Typeface App for me.
I'm not really weeding out any Postscript fonts but rather searching for their TT versions if available and switching.

I'm a recovering font addict myself. I switched to using Typeface recently and did a deep purge of my collection to weed out the old Postscript fonts that are being phased out. I'm happy with the app. It has a lightweight feel to it, but doesn't skimp on features. And it seems to have regular updates and improvements.

@angier
Here is another who understands perfectly
why you can never have too many fonts 🙂
Worked in digital printing and many customers had their own fonts.
At that time I used the font manager that was part of the CorelDraw suite
to keep track of that fonts.
For all font lovers, some time ago I found a video about Paula Scher
that you might like. Here the link
https://www.youtube.com/watch?v=LCfBYE97rFk&list=PLuctemCzX-m4svPpBctWUp0oG__Lhglq9&index=6
 

There is NO such thing as having too many fonts.

Kenmcd,
Thank you. I've worked with MainType but it felt messy. I'll download Proxima today. The program looks like it's going to be perfect to work with.
And y'all I promise I'm not crazy!

2ddpainter -  Netflix started the video with Paula Scher saying, "Typography is my crack." Oh my, that was such a funny and awesome thing to say!  Just started watching the video. Thanks!

DAN C.
IT WORKED! THANK YOU! THANK YOU! THANK YOU!!!

Walt, you're always so good to reply. I installed a new EXE from the website onto the new hard drive. I probably shouldn't have done that before I asked someone what to do.
 

My prediction is next Wednesday I shall be rebinding mousewheel to zoom, as is tradition.

OK. Yesterday I updated Photo, Designer then Publisher. The brush engine in Publisher-Designer still stalled when I edited any of the brushes (width, variance, stretch, repeat...) I've always had to be patient with myself when working in Designer. But this morning I imported my brushes into Designer only and there is absolutely no stalling so far. HALLELUJAH!!! So maybe it's just in Publisher? Thanks for checking in on me Dan! Really appreciate the responses I get here to any of my problems.

Hi Sean and thanx for your engagement!
It was my suspicion too, that it may possibly have to do with the scaling of the Artistic Text by dragging. With the  Font Size dropdown it seems to work (thought I had already tested it). Thanx again!

/...)

Please make an auto-clean paint mixer brush button and/or give us a hotkey to clean the brush. We need better brush organization options and a brush history recording panel - or at least keep the brush we are using highlighted so we don't have to go through several brushes to relocate brush we were using. Tilt and flip shape option would be very helpful too. I am a digital hoarder when it comes to collecting brushes. I spent a week organizing half of the brushes I have because moving them around inside Affinity Photo stalled and crashed the program over and over.  Thanks for your attention to my request. I know y'all are probably working on this already.   Angela

No problem. Thanks for all the help. Y'all are really good about responding. It means a lot!
 

it is the same for me -- most won't install (resulting in the 'unexpected format' error) but a few install without any issues. Annoyingly, there seems to be no obvious reason for this difference I can see -- it is not related to the size of the .abr file, how many brushes it includes, or the vintage or source of the files.
The existence of this bug brings to mind two things:
It is more important than ever to make .afbrushes backups of all added brush categories that came from .abr files, because if it is ever necessary or desirable to reset the brushes to factory defaults, there is no way to get them all back until such time as this bug is resolved. We really, really need a more user friendly & less tedious way to backup not just individual brush categories but all of the categorized items that any factory reset wipes out. If nothing else, a 'batch' backup of each categorized item that saved them to individual category files in a folder somewhere would work.

THANK YOU! VOFYN. I looked to see if there was a hot key but didn't see what was probably right in front of me.