For a tech community there are a lot of uninformed and fear mongering posts in here. From the article:

What About Browser Modifications and Extensions?

Google's proposal remains ambiguous about its impact on browser modifications and extensions. It attests to the legitimacy of the underlying hardware and software stack without restricting the application’s functionality. However, how this plays out with browsers that allow extensions or are modified remains a grey area. As the proposal vaguely mentions, "Web Environment Integrity attests the legitimacy of the underlying hardware and software stack, it does not restrict the indicated application’s functionality."

Basically it can be summed up as “nothing in the new thing actually says it will make blocking ads impossible or even harder, but who knows right? So just trust that it will based on nothing other than fear mongering”

Sites have been detecting ad blockers and refusing to show you content unless you disable them for years. Sites already have paywalls as drm to restrict what you can see. This really isn’t bringing the ability do any of these DRM things since those already exist.

Having said all that - is there much of a reason for this new thing to exist? Debatable at this stage. The only benefit I can see to users is it could eliminate captchas and other “are you human?” checks, as well as maybe reduce cheaters in browser based games (which tbh I don’t even know if that’s a thing).