They are all the same. Tutanota has a backdoor included.
Discussion
So if you need email, its better to use gmail and not pay for a service like protonmail because in the endtheiy are the same? Is this it in a nutshell
I would always stay away from Google products.
A good option imo is: https://www.linuxbabe.com/security/encrypt-emails-gpg-thunderbird
Thanks for the feedback!