I had backblaze, and it’s really a bummer they don’t support linux. The closest one I’ve found is Icedrive, but it costs a bit more. I don’t mind paying a bit more though for a FOSS solution (technially not free but yeah). I probably only have 2 TB of actual important stuff but it would be nice to have more for future.
spoiler
askldjfals;jflsad;
Proton Drive does not support Linux…
I think there is early beta support in Rclone, but I have seen many reports of it not working well.
Unless I’m misunderstanding it looks like they do work with rclone https://rclone.org/protondrive/
spoiler
askldjfals;jflsad;