Launch a minimal MATE DE

[Richard Owlett <rowlett@cloud85.net>]

I used debian-11.2.0-amd64-netinst.iso to install CLI of Debian.
I then did:
> apt-get --no-install-recommends install mate-desktop-environment
When I attempted to run startx I received the message
> startx: command not found

IIRC this has worked in the past. But it has been a couple of years.

What have I forgotten?
What should I be re-reading?

TIA