Why would you enable unattended upgrades on a desktop computer (as opposed to a server)? Is this something Ubuntu enforces?
If you don't enable this feature (which isn't enabled by default in Debian) you won't have this problem.
If you don't enable this feature (which isn't enabled by default in Debian) you won't have this problem.
But they do have an excellent solution to the whole updates debacle: Install them in a separate location, initialise them when booting or when they're finished installing, and delete them when they're inaccessible from a few standard locations like /boot or /proc.