Is that the reason Ubuntu installs half updates and breaking the system the last few months? Three times now the kernel was updated but not the nVidia modules,

Is that the reason Ubuntu installs half updates and breaking the system the last few months? Three times now the kernel was updated but not the nVidia modules, leaving the user with a system without the actual graphics drivers. And once the wrong kernel was installed for an unknown reason (oem package installed, but I never selected it). After a manual update it worked once again. Between the update and the fix there might be a few days in between tho as the updates were automatically installed, but the effect/issue can only be seen after a restart.