Eye gaze hover effect on UGUI in Windowed app

Is there a way to enable eye gaze hover effect on UGUI in a windowed app? I found most existing windowed apps on Vision Pro are able to do this. I am able to get the gaze hover effect worked on my Unity game in MR mode, but it doesn’t work in windowed mode. Is that not currently supported by Unity?

Unfortunately no, Windowed mode uses metal to render so the hover effect is not available (just like in VR / fully immersive).

Feedback
If you want support for better gaze access I recommend letting Apple know via Feedback Assistant.