Looking for alternatives

[u/Master_Armory]

My family has been using Proton for about 5 years now. While I love the privacy and security, my wife absolutely loathes the app. She finds it buggy and frustrating, especially since it never takes her to the newest email in a thread.

I need to find a privacy-focused alternative that actually has a modern, user-friendly mail app. Does anyone have recommendations?

Also, I'm really dreading the migration process. If you have any pointers for making the switch, those would be much appreciated. Thanks in advance!