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
Small correction: While Chromium is not "owned" by Google, Google employees are the main contributers and the project is controlled by Google Employees. Chromium will absolutely support whatever Google wants it to support.