Google’s anti-ad scripts are breaking browsers and privacy plugins. It could get worse because Google controls the ad market, Chrome, and the extension store.
The only different thing about grayjay is the polycentric account instead of having your YouTube account other than that all the features are the same or even better. What is there not to understand.
Grayjay does not have sponsorblock. Grayjay does not sync my subscriptions across my other devices. Grayjay will not have YouTube features as they roll out. Etc.
Grayjay is basically newpipe (youtube scraper) + casting + centralized, unmoderated comments + other services.
YouTube Revanced is a patched, debloated version of YouTube itself.
Grayjay does a lot of cool stuff, but they are different tools for different problems. Youtube Revanced allows users to have a better Youtube experience on their phone without losing any functionality. Grayjay is asking users to change a lot about how they watch Youtube.