Is a browser-in-a-browser proxy safe for anonymous browsing? or How effective is a browser-in-a-brows

OP here—thanks for all the replies! Super helpful. Sounds like browser-in-a-browser proxies aren’t the move for real privacy.

Gonna try Tor + a VPN like some of you suggested. Anyone got tips for reducing fingerprinting? Heard about CanvasBlocker but not sure if it’s enough.

Also, any recs for no-log VPNs besides Mullvad? Thanks again!