Ya I mean I have a proton account as well. I was mainly just pointing out that privacy in email is kind of silly to be worrying about. Your bank if not encrypting the emails they send and its pretty much guaranteed they are relaying it through an exchange or gmail server. I appreciate what proton is doing but Google and Mircosoft are getting your data either way.
My strategy has been to just not use email for much of anything beyond what is required for my life to function. Which really isnt much.