@glasskuter, I already did indead ... so things are no longer centralised.
I'm used to Windows through the years, yet this doesn't make things any easier though.
For a 'regular user', this may be a bit troublesome.
Change is not always progress in my opinion.
When I use 'shell:::{05d7b0f4-2121-4eff-bf6b-ed3f69b894d9}' to get into settings and enable 'action centre' switch and click the 'OK' button, it doesn't work the way it was with Windows 10.
So I wondered if there's some kind of override command to put the 'action centre' icon back in system...