I know I'm late to the party, but ~~don't~~ do you think Aeon is ready to be a daily driver?

I currently run Debian stable, but I'm interested in Aeon as an alternative.

On the Nintendo page for it, it says the motion controlled games require a joycon, but those games are disabled for online play. Maybe there will be an option to disable them for local play too?

It's got updates from earlier this year. It appears to be updated periodically since it was first written. Some sections are old, while others are fairly new.

I do like Tutanota's approach to encryption, but communication outside of other Tutanota addresses is less secure than PGP. It's just a symmetric, password-based scheme.

Since you will probably deal with a lot of non-tuta email providers, it's a hard sell for me. In network, though, it's good.

Second issue I had with it was the email client. I like my third party client and it's built into my workflow. Tuta doesn't support third party clients because they consider the storage of emails on your local drive a security risk. (That's only true if your hard drive isn't encrypted, and setting up encryption isn't all that hard to do)

I use K9. It went through a rough patch a few years ago with the UI, but it's much better now. Mozilla is involved and K9 is in the process of becoming the Thunderbird app.

Good point! That's an option for most email providers, and that's fine for most applications. I just like using a desktop client, but if you don't, then that's not even a factor for Tutanota.