Unfortunately I'm only able to use browsers which run on linux so I can share history between my phone and all other computers.

If Orion had a linux version, maybe I'd consider it, but the firefox-skin on webkit lets me share history even if I can't install extensions, and my history is more important.

A browser that only works on iOS and macOS doesn't have a better privacy policy for me in practice, apple collects all sorts of information that my linux devices don't.