I alwayse check this before downloading apps because i dont want apps to spy on me. And what i noticed in practise is that usualy payd apps offten dont collect any data and even if they do its less data than free apps.
So obviusly they collect that data to sell it and to make money that way. And if you think only big companies for advertising buy that data you are wrong.
Gowermants, secret organizacions and milioners who want to control your life is bying that data the most.
The devs behind GrapheneOS are aiming to eventually release phones with native support, which I imagine will involve shifting away from AOSP (especially since the endgame is definitely killing AOSP despite what the cunts at Google claim).
Hoping I can make that jump before the Trump regime makes it illegal for any tech company to not be easily exploitable by his gestapo