Pen Menu vs Windows Ink Workspace. Pen Menu does not appear?

I work in a school, so we have a lot of touchscreens. A teacher has been migrated to Windows 11 and mentioned that the windows ink workspace functionality has gone. That looks like it should have been replaced by the pen menu in Windows 11, but that doesn't seem to work at all, tested on both 22H2 and 24H2. I've tried connecting to a Promethean touchscreen, and a Star G640 drawing pad, neither seem to activate the pen functionality. I've ensured that pen menu is on via the taskbar settings.

What am I missing?

Thanks