> Yea, they say as much in the data privacy FAQ. I think my recommendation is that if you're worried about being explicitly targeted by state actors, don't use email. (Not even Protonmail.)
Protonmail (and Tutanota, which I went with) both offer E2E encrypted email via open-source client apps, so they should be fine even against state actors if you use their encryption. In the case of Tutanota, this has even been tested in court.
Of course, if you use them to send or receive plain ol' unencrypted email, this largely goes out of the window regardless of the provider.