It seems that Windows insiders experience a problem after installing update build 21292.1010 (KB4601937).
The x64 emulation on ARM PCs won’t work anymore. Microsoft said this problem will be fixed if you uninstall update KB4601937. The problem should then be solved and everything should work properly again.
Heads up #WindowsInsiders in the Dev Channel! We've released Cumulative Update 21292.1010 to validate our servicing pipeline. We've updated the blog post to include the GameBar issue reported by a few Insiders. Check out the blog post: https://t.co/R8wsGscKWz #AreYouFlightingYet pic.twitter.com/ljquTKpdKb
— Windows Insider (@windowsinsider) January 15, 2021
Source: Microsoft