And the browser rather Firefox based ( or at least any browser that supports mv2 ) and yes all of the branches of chromium will not be able to support mv2 forever as google will literally remove it from chromium next year.
YouTube for me now on Librewolf + uBlock Origin doesn’t even load a single video past like 30 seconds for me now so I’ve just moved over to using FreeTube
I didn't have an issue for 10 years (firefox+ublock origin too) and suddenly I saw a 6 second ad on a video I had stopped, I got jumpscared. They definitely are getting more aggressive with their tactics.