I think the best you can do is use pihole with unbound so all dns requests go directly to root servers so no middle man involved. If you have a raspberry pi and use dietpi it is very easy to setup.

I know this may be blasphemy but if you use a VPN to sign up from certain countries you can get YouTube premium for like 25 bucks for the year. Haven’t tried it personally but I’ve seen it mentioned a million times.

If they go to war with adblockers though some one smarter then me will probably come out with a way to just download the video and cut out ads post.