Well, that's how Cambridge Analytica scandal happened

Ross Schulman, senior fellow for decentralization at digital rights nonprofit the Electronic Frontier Foundation, notes that if Threads emerges as a massive player in the fediverse, there could be concerns about what he calls “social graph slurping." Meta will know who all of its users interact with and follow within Threads, and it will also be able to see who its users follow in the broader fediverse. And if Threads builds up anywhere near the reach of other Meta platforms, just this little slice of life would give the company a fairly expansive view of interactions beyond its borders.

https://www.wired.com/story/meta-threads-privacy-decentralization/

including voice

how else would facebook live and such work?

i mean some of these makes sense

but its also a question of ... does the app use all these things, all the time?

do we know?

On my mac i have to allow discord to record my voice etc. if i dont, i can still use the app but i cant talk in a voice call, and such.

i'd like if apps did similar, on phones. they'd work but some functions would just be unavailable