I mean, you can argue that Google actually has a monopoly on web browsers right now. iirc Firefox takes a ton of money from Google, so if the choices are “Google’s proprietary browser” or “a non-Chromium browser backed by Google” (EDIT: unless you’re on Apple hardware and use Safari), then Google comes out on top either way.
Wish we could get another good browser engine that isn’t Chromium, WebKit, or Quantum.