Getting browsers to adopt and implement Web Environment Integrity is Step 1.
Step 2 is where all Google web sites start requiring Web Environment Integrity to be used or they lock you out of the site.
Step 3 is where all websites serving Google ads require Web Environment Integrity to be used.
Step 4 Profit!
This is the beginning of the further DRM-ification and enshittification of the Web.
It happens one step at a time:
https://gabrielsieben.tech/2022/07/29/remote-assertion-is-co...
I see no solution beyond the deglobalization of the entire tech stack (down to the very OSes) and multiple sources of trust in the form of multiple nation states. Maybe my government will make an official Linux distro and make it mandatory, so we can escape this coming shit.