Before attempting a connection, verify that your hardware is compatible. Miracast requires a Wi-Fi adapter that supports and a graphics driver that supports WDDM 1.3 or higher.
If you have a laptop with an Intel 7th-gen Core or newer (or AMD Ryzen 3000+), buy a $20 Microsoft Wireless Display Adapter and you’ll get a surprisingly usable second screen. If you have older hardware, stick to HDMI. Windows 11 made Miracast better, but physics—and cheap Wi-Fi drivers—remain the enemy. miracast windows 11
Miracast on Windows 11 is perfect for: