looks like rendering adblockers extensions obsolete with manifest-v3 was not enough so now they try to implement DRM into the browser giving the ability to any website to refuse traffic to you if you don’t run a complaint browser ( cough…firefox )
here is an article in hacker news since i’m sure they can explain this to you better than i.
and also some github docs
Remember kids, piracy and shoplifting are your friends. Reason I say shoplifting is this will be used to block you from paying for stuff online, just look at how google pay is blocked on non google approved spyware Roms