My Issue
I have the same issue after I downgrade the Xcode 15 from beta 6 to beta 5.
The control panel is gone and all the features of 'Device' in the menu bar are disabled in the Simulator.app (Version 1014):
But looks normal in Simulator.app (Version 1015):
Workaround
Make sure you run the Simulator.app (Version 1015) before you build your project. You can locate it through 'SpotLight'.
Topic:
App & System Services
SubTopic:
Core OS
Tags: