I installed 21.04 on my laptop to try it out, and now it comes with wayland as the default.
However, I'm noticing some issues with my digital drawing tablet and I wanted to switch to x.org to see if it is related to that, only that I can't see the little cogwheel that would let me do so on the log in screen.
Am I missing a step, is it possible to do it still?
EDIT: I may be silly but it finally showed up, I'll just close the post but it appears after clicking on an user and not before as I thought it might.
I'll answer myself just to leave it on the record. It was simply that the cogwheel appeared after clicking on a user and not the user selection menu.