Are there any plans to allow grouping fonts by directory? In InDesign, there is a fonts folder separate from the system fonts. I use this all the time to set specific directories for unique customers - without 'installing' them to the system.
It is a mixed blessing though, because the same option is not available for the other Adobe products.
With Affinity, I can see benefit to allowing a user to designate specific directories to scrape for fonts and add them to the font selection tool. If all three apps could reference that, you would leapfrog the competition. I know this borders a bit on a font manager, but that is a huge part of modern publishing.