Cancelling this 2023.2 tech release issue since the support for this release has come to end of life. Cancelling this 2023.2 port case does not affect any LTS or Unity 6 Beta/Preview that remain open.
Reproduction steps:
1. Open the attached “Repro.zip“ project
2. Build And Run
3. Click the “Exclusive Fullscreen” button
4. Press Alt+Tab to minimise the Player window
5. Click on the app from the taskbar or Alt+Tab again
6. Repeat 4-5 steps 20-30 times and observe the screen
Expected result: Player window goes back into Exclusive Full Screen mode
Actual result: Player window gets stuck top-left of the screen and doesn't go back to Exclusive Full Screen mode