I think it would be useful to borrow the Lock Workspace feature from Photoshop for After Effects, esp with the wide use of so many scripts and CEP panels in many workflows. I accidentally pull off tabs or slide them around in my day-to-day use of AE, esp since I’m using a Wacom pen most of the time.

I’m sure there’s some wrinkles to consider, esp when switching Workspaces while locked - do you prompt with a pop-up or automatically switch it?