A few I’ve not seen mentioned yet:

Equate - calculator/converter etc Feeder - RSS client Immich - Photos. App for self hostable server Jellyfin - media client Joplin - notes MJ PDF - PDF viewer with extras PDF Converter - handy PDF tool Squawker - view the cesspit, follow stuff etc Subz - track your subscriptions Untracker - removes tracking info before sharing links Whobird - Shazam for birds