By default, in MacOS, you can double click the titlebar of a window to zoom it (resize to fit the screen - different from maximize). Double clicking it again brings it back to the previous size. This works fine on my Catalyst app too. However I need to hide the titlebar and need to give my own custom UIView in that titlebar area the double click behavior. I am able to hide it using this: #endif Is there a method which lets me toggle the window zoom?

I am using the window.level set to .floating as described here: https://developer.apple.com/documentation/appkit/nswindow/level The setting itself works okay. However, in a multi monitor setup, the floating window is appearing on both the screens. How can I prevent this? My users report that before macOS Sonoma, this used to not happen. Has this behaviour changed? How can I revert back to the old behaviour?