Archy

There is an interview with the founder on one of the Privacy podcasts. You can form your opinion. My opinion - yes, they are trustworthy and you can do with them anything that you can with any Linux box, alternatively flash a clean OpenWRT for extra paranoia

Signatures are different. Uninstall old FDroid version first

I’m not your buddy, bro

look on XDA developers forum for your model. They usually have plenty of alternative ROMs

Using Soundcore with their app and internet access denied. Set up once, deleted the app

How did they find out???
Alias description? Inbox headers?

Pro tip #2.
Any time they have your stuff - they will use it (sell it) sooner or later. Zero knowledge is the answer

Yes, it’s called unbound

Not sure about “designed”, maybe evolved to be that way but not designed

If the streaming apps will be deteriorated the only option left will be yt-dlp and mpv left