The workaround is not to fully disable iCloud Backup, but to disable Cryptomator from your iCloud Backup. This might help: https://www.wikihow.com/Delete-Apps-from-iCloud
The workaround is not to fully disable iCloud Backup, but to disable Cryptomator from your iCloud Backup. This might help: https://www.wikihow.com/Delete-Apps-from-iCloud