> - No option not to persist history/permanent incognito mode

That's something I've always wanted.

Only Firefox seems to offer it. Firefox can also open external links in incognito (eg if you tap a link in another app, it will open in a firefox private window)

Duckduckgo browser and Brave can be set to delete all data upon start, which is similar but not quite the same because things are still persisted until they're cleaned up at the next start (they say it happens on exit but it really happens on start, because catching exit isn't reliable or something).

Brave also has no way to have exceptions for certain websites (Duckduckgo can, they call it fireproofing).