Stage Manager
I initially was going to post about how hovering over the lefthand side of the screen wouldn't display the stage manager apps, however, I was able to solve this by changing the "Automatically hide and show the menu bar" setting to "In full screen only". So I hope that helps anyone who experienced the same issue.
This brought to light a separate issue though. Is this a bug? Should it really require that the Menu Bar be visible in order for this to work properly?
Brian’s MacBook Pro 15"