Iโve been using Tuta, and while I like them as a company and for their privacy, it bothers me that I have to use their email client. It increases switching costs for me because I canโt use the same client as my previous as I switch. I also donโt like the client. I understand why they do it - to control privacy, but I donโt see why I shouldnโt have the choice and why for example using Thunderbird doesnโt still comply with that.
I donโt trust proton because of its right wing expressions. Infomaniak is (to my knowledge) not focusing on privacy.