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?
Not to endorse, but Dropbox always seemed to work without issue. Again, several years since I used it.
But more seriously, Ubuntu One should never have folded.