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
Apple isn't the way to go though, so your options are Pixels (with a different OS) or no phones if you truly care about your privacy.
Haven't ever suggested Apple. I'm just saying that (or anything) doesn't justify the answer being a Pixel from Google of all companies.
There's lots of Linux phones going around.