It blew my mind when I learned you can set up a laptop as a second monitor on Windows 11
How to use a laptop as a wireless display on Windows 11 On Windows 11 ... It's also important that both devices are connected ...
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How to project PC screen to Xbox One using the Wireless Adapter App
It is your second monitor but over wireless. It’s not necessary that both Xbox One and your computer are on the same network. It is great that now I can stream or duplicate my Windows computer ...