I think I won't receive this update, as per usual.
(...)
Digging into my memory I've come to the conclusion that the only change I've made before the appearance of the problem is a further edit to GP: Do not include drivers with Windows Update set to Enabled.
I was wrong, I had done 2 more customizzations in GP:
Configuration\Policies\Administrative Templates\Windows Components\1) Data Collection and Preview Builds\Allow telemetry: Enabled and set to 0
2) Delivery Optimization\Download mode: Enabled and set to 0
After disabling the first one and immediately checking for updates, I've received KB4089848.
Hopefully this can be useful to others users having the same "issue".
Here why diagnostic data level set on "security" prevents Windows Update to provide cumulative / features updates.