Same Question: Is WinAPPDriver dead or still maintained?
I guess it is abandoned. The latest provided release from 2021 still works, but only if .NET 5 is installed. But .NET 5 is is "End of Support" since May 2022.
Is there the sourcecode available anywhere, to compile to .NET 6 or .NET 8?
Seems the Repo https://github.com/microsoft/WinAppDriver only hosts the releases and some tools.