How to detect using xcode all areas in the codebase where UI is updated.
I want It causes the app to become unresponsive

I want to enable these purple warnings
“This method should not be called on the main thread as it may lead to Ul unresponsiveness.”

I have already enabled Main Thread Checker in Edit Scheme -> Run -> Diagnostics -> Runtime API Checking But I dont get these warnings as shown in the image attached