This is from a very happy user of Affinity Photo! But what I really miss is something like the cataloguing / library functionality of Adobe Bridge, Photoshop Elements etc. I don't really want to use Adobe Bridge, having been glad to escape Adobe's clutches when I made the switch to Affinity. But I find that trying to select images in Windows or Google Drive is laborious and, of course, I can't see comments, stars or anything apart from the file name, date & file size.
Even if Affinity Library were a standalone app, linked to Affinity Photo, Designer & Publisher but purchased separately, that would suit me. Is such a thing in development? If not, it's Adobe Bridge for me, sadly. But definitely not back to Photoshop or Lightroom!