[gullevek]

Even with this and even with not updating their client for macOS anymore they are still better than Google Drive and One Drive.

OneDrive for example: you can't delete a file into the trash anymore. It gets just deleted, like a force delete. So if you are offline or OneDrive is not running or the file has not yet been uploaded to OneDrive, that file is GONE. MS response: use the online trash. It worked until they updated to the new 12.3 macOS sync system (icloud can delete to trash, so I fully blame this on MS). Also if one file does not sync for whatever reason ALL syncs are stopped until this conflict is resolved.

GoogleDrive. If in drive stream mode (which i think is the default) it is mounted as a volume, so it is not "there" when you login, so any files opened from there will not open until GoogleDrive is mounted. Also saving to this Volume mounted google drive with some apps will trash the file. MySQL Workbench trashed files very very often. You need to restore from the google drive backup in this case. If you switch to all files always local it is like Dropbox and works, unless you want to upload symlinks or something with characters that don't match googles like and then you have missing files. At least other files will sync. I also have no idea if they actually support macOS 12.3 file sync type fully ...

iCloud: Works ... except that what you see in the finder is not what you actually have in the Terminal because it is a mix of actual files and data folders from applications. Sharing is a pain between users. I also don't think it works well on non Apple systems.