Other than apps written by the Windows team and shipped with Windows, what's the flagship WinUI3 app?

How large is the actual WinUI team, approximately? We can make guesses from the number of committers on github, which appears to be about half a dozen people? It just doesn't feel like Microsoft themselves are really committed to making it work and then forcing it on Office or Teams.

At some point soon I'm going to have to do a native app to do driver control, and it seems the elegant simplicity of WinForms has been lost compared to how much "runtime" nonsense is hiding underneath the two different WinUI2/3 implementations. (You've done a Python 3 there!)