The last can’t easily be sarcasm. In app adblockers like Adguard do have a premium subscription option(I had one for a year back in the day, yes, stupid me) and I won’t be surprised if in the future some adblocker comes with such an option(should Raymond Hill stop working on uBlock Origin for whatever reason and the community couldn’t pick the development up that good).
Where are they now? On Nebula? I stopped watching much YouTube since couple of years, though I had a decent feed back in the day.
Ironically, I still do use YouTube Music despite it’s failings when compared to Spotify(no third party app support or shitty search results even now) but Atleast it worked for me when Amazon Prime Music refused to play in any web browser on Linux for me.