Libretube and some Piped frontends are currently down as Google is reportedly “rate limiting” (aka IP banning) these instances according to the Piped Matrix group. A workaround is being implemented, but if you are on Android and are in desperate need of Youtube audio during work like me Newpipe is still running.
You don’t need to do it with every version. I only patch a new version every 6 months. That’s more than enough.
I usually patch it every time videos stop loading