It is extremely simple and easy to change your search engine and disable telemetry in Firefox. I would agree if Mozilla showed any favoritism towards Google, but they don't. Maintaining and developing an entirely independent browser is not cheap.

I really hope you're not about to suggest Brave as an alternative when 100% of their funds come from a dying crypto scam, is for-profit, and is owned by a far-right, anti-gay reactionary. Not to mention that Brave's browser is entirely reliant on Chromium code from Google.

Perfect is the enemy of good.