I still haven’t had any issues with youtube ads. My setup:

• Firefox browser with only uBlock Origin installed as my adblocker (no other adblockers)

• I never log into my google account to browse videos

• if there’s an age-restricted video I want to watch, I just rip it with youtube-dlp (you don’t even have to load the video, just right-click the video and copy the url and you can rip it)