I get this warning when closing SwiftUI ColorPicker's window. -Wdeprecated-declarations didn't bring up anything, but using above breakpoint command stops exactly when closing. It is pointing to static AppDelegate.$main(), so that does not tell me a lot. I'm totally new to disassembly though.

You were so right: CGDisplayCreateImageForRect macOS 10.6–14.4 Deprecated

Works with Xcode 14.2

This was the cause here, too

to make it work, change NSViewRepresentableContext to NSViewRepresentableContext<TooltipView>