For the email function only.
This past month I signed up my only goal was to get librem.one as an email. So the web site tells you if you are using a linux platform to install Thunderbird, pgp, and enigma.
OK find I did that, and it works. Cool.
But in the back of my mind since I had been using Claws with my former email, would Claws also have worked with pgp and enigma add-ons in librem.one?
I was rather fond of Claws ability to file your messages in folders with Control-O. In Thunderbird, if you want to file a message in a subfolder, you have to drag and drop. (If there is a keyboard shortcut in T-bird for filing I haven’t found it.)