It’s not fdroid that doesn’t make it easy to insyall apps that are open source but not FOSS, it’s the licence of the non gpl open source softwarebthat usualy bans modifying, building and redistributing the code. It’s not foss, it’s just viewable source.

Because in the main repo of fdroid, the apps code is quickly eyed then packaged by the fdroid team from source (plus a quick virus scan. Google only does reputation check and use virus total (their android anti-virus and anti malware software), yes, the same virus total you can access as an app or webpage.

Or morally better than breaking TOS, use a FOOS alternative like Jellyfin.

Pcloud will probably go this way.