Raws ~80 - 99% (also depending on your sources)

For pretranslated a bit of yes and no but primarily not. This I’d suggest going to your favorite scanlation user/group pages and look for their Patreon, Kofi, Discord.

So the answer’s a bit of a mixed bag but if you want to keep a manga that you love with the highest quality possible, currently these are the optimal routes that’s available atm.