A way is with an AppBar and ABN_FULLSCREENAPP
(tested on Windows 10 22H2 with several games in Fullscreen)
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Can I register a message? Let me know when something else goes full screen.
Tells the taskbar to restart, as with RegisterWindowMessageW(L"TaskbarCreated")
A way is with an AppBar and ABN_FULLSCREENAPP
(tested on Windows 10 22H2 with several games in Fullscreen)