Every browser that's not a majority browser will be associated with these kind of blocking risk. I can't risk access to my financially important accounts, nobody can. So to me this is not a feasible alternative.
The only way to build a browser is to act like one of the others, and to behave like one of the others. Can't use brave, given their history, but farbling approach is the most sustainable solution in my opinion.
My remaining hope is that ladybird will actively deny implementing web standards that can be used for fingerprinting.
Something as simple as overflow:hidden is used on every website to force people to get tracked by having to activate JS, and things like this should be something a web browser should protect its users from.
We need a CSS engine that denies setting these kinds of things, because JS fingerprint prevention isn't enough if every website breaks because of it.
If you want a headstart, I tried forking webkit and do exactly this. Project is unmaintained because couldn't work fulltime on it without funding. Maybe somebody else picks it up? [1]