"You are limited to >System Preferences>Mission Control."
Which doesn't include any way to disable Mission Control/Spaces
I had already disabled the shortcuts and hot corners, but still ended up triggering Mission control after slipping while scrolling.
I have coordination/proprioceptive and sensory processing issues, and somehow slipped and activated Mission Control and moved Firefox into another Window. There was a lot of zooming. Zooming hurts me. There is side-scrolling between desktops. Side-scrolling hurts me. All this animation can trigger my migraines.