If I have to choose between a company that freely sells and uses all my data versus a company that e2e encrypts my data and only complies with police and intelligence agency if it is specifically mandated by a swiss judge (and are fighing against it[1]), my money is definitely on the later
Is it perfect? Probably not. - Does it match my thread model? Definitely yes!
Also their privacy policy [2] allows to make a pretty well informed decision and map it against your thread model
And by the way, here’s the statement of the ceo regading the activist: https://proton.me/blog/climate-activist-arrest
[1] https://www.swissinfo.ch/eng/business/proton-wins-appeal-in-swiss-court-over-surveillance-laws/47052196 [2] https://proton.me/legal/privacy