Many use ProtonMail, I've been a subscriber for years. They have opening up Proton Drive - it's in Beta - but it would be great for rclone to get on the bandwagon as a client application.
I havn't had the time to test it out myself (yet), but so far this looks promising. There are still some issues, but I assume they will be sorted out eventually.
Yep, I was referring to Linux users not finding love in general. I hope Proton would work on Cryptomator soon. I mainly use Linux for data archiving and storage, mainly because I work in the design field.