I've used cryptomator in the past but it still feels like it needs a bit more testing and polish before I'd be confident in using it for personal file security.

I've used cryptomator in the past but it still feels like it needs a bit more testing and polish before I'd be confident in using it for personal file security. Boxcryptor has the feel of an incredibly brittle app. I'd hate to be the one who had to maintain that thing. Tresorit is wonderful if you're rich. I've settled on pcloud. Adding end to end encryption is an add on service but inexpensive and dependable. They also offer background backups of your social media accounts, downloading and storing all of the photos you've uploaded to fb, Instagram, Google photos, and even doing full Google drive backups.