I should think so, though honestly I have not gotten any spam from protonmail/tutanota ever since I switched over from gmail years back and I’ve only gotten emails that’s I’ve signed up to or that I know are relevant to me aka important emails.

Services like gmail survive by spying on your emails in relation to also having ads on their services, hence why you get so many emails and junk you don’t remember signing up on the promotions tab, despite gmail is supposed to be well renowned for “anti-spam” whilst also not being totally private whatsoever cuz of it. It’s all just a cover tbh esp with top free mail providers.