MS doesn't believe in any of their toolkits, and the source is their actions. First off, they're addicting to introducing new toolkits instead of improving existing ones. But that doesn't even matter, because they just use Electron anyway.

MS has multiple personalities, so some might do, I will give you that. Meanwhile, WPF is getting rehabilitated. It seems like that not only the average developer has concluded that all the other UI frameworks since wpf are half-baked. Someone more involved than me makes the same assessment: https://news.ycombinator.com/item?id=47480056

I recommend everyone to ignore all experiments, and go straight for AvaloniaUI, as it is quite similar to wpf, actively devloped and cross-platform. The only downside I see is that Wayland is still in progress yet.

How many MS products are dog fooding Maui?

When COM rolled out, every product was very much on board.

The need for Maui in-house is for…what?

Some of us have insider connections