Not just advertising: Mozilla could not have put a “better in Firefox” button on Gmail or YouTube at any price, or forced Google to follow through on their promise around H.264, etc.
Microsoft is literally doing this, and yet...
https://arstechnica.com/gadgets/2021/12/microsoft-edge-will-...
[1] https://www.crn.com.au/news/google-may-pre-install-chrome-br...
[2] https://thenextweb.com/news/sony-computers-google-chrome-bro...