My main browser is Librewolf but I keep a chromium browser just in case. Previously used brave but their flatpak is shit. Ungoogled chromium seems ok but it looks like they don’t change much from upstream chromium. Any good chromium browsers which harden their browsers like librewolf does for more privacy?
Thorium would be good but it probably has too few contributors
And it is also outdated and not privacy optimised (which seems way less documented than with Firefox). Not sure if appimages even have sandbox or if that is broken too.