Nvm on building revanced! There is Revanced Manager, a couple clicks now to download and install, no need to use grayjay now.

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.

There’s a better one than revanced, it’s called grayjay

I got those popups while not even being logged in at some points, but just purging the cache on uBlock filters seems to work.