Grayjay is the only one so focused on privacy and censorship resistant comments and sources/creators. The only app resistant to the heavy YouTube censorship.
It has the encrypted signed comments system with polycentric.
And it has the censorship resistant creators across all of the sources with harbor. (You automatically follow creators accross all the sources instead on channels -> censorship resistant).
This is all thanks to one guy: Eron Wolf (FUTO) who spends millions of dollars of his own money he gives to open source developers to bring us these privacy apps. (He has also given 40'000$ to GrapheneOS).
IMHO, it's a shame to see some people even recommend some other apps instead of grayjay, when there are people putting so much efforts to bring us such a great privacy focued app, and when with everyone on grayjay it would also help the polycentric community grow.