the way i go about things:
GrapheneOS: vanadium preferred, brave if necessary
Fedora/SecureBlue: trivalent preferred, brave if necessary
macOS: id use brave over safari even, though keep in mind safari integrates with lockdown mode, other browsers dont
chromeOS: regular chrome is fine here
iOS: everything is a safari wrapper anyways to not violate appstore guidelines so id just use safari but brave is another option for the adblocking
everything else is just use brave, and something i havent mentioned is edge with policies, that is also not a bad option