I’m tried of how terrible Gmail is. Id like an email client with folders or categories. If it can sort them automatically (like how Googles now defunct inbox app used to) that would be even better.
Edit: in a couple days or whenever the activity on this post slows down. I will update this post with a list of the most recommended email app.
I use protonmail as well. Can you create folders and set your rules for them from mobile in proton?
You can create folders and labels, but you need to go to the web version in order to make rules, but it all syncs up with the mobile app aswell. The website also works fine on mobile.