The main cloud services don’t even work natively (GoogleDrive, OneDrive, iCloud) basically the only mainstream choice is Dropbox. I tried to use Google Drive in Mint, and it’s a pain to get it to work, and usually it stops working after computer restarts.
Someone has a recommendation about how to handle these services?
Nextcloud works great! Includes integrations with GNOME and KDE including taskbar icons etc. and you can pay a service to host Nextcloud for you if you’d prefer that to selfhosting.