If you work on Xamarin.Android, Xamarin.Forms or .NET MAUI, then think before you upgrade to Windows 11 on that machine. The reason being Android Emulator fails to start and seems many of them have already reported this issue via Windows Feedback and on other channels. I’m yet to find a solution to this issue. I updated to Windows 11 21H2 OS build 22000.100. And it’s currently running OS build 22000.194 (same as RTM version). The only possibility, for now, is to make use of a physical device. Thanks to Wi-Fi debugging.