Agree with that (there is a lot of dark matter), but I would not call it "managed". They try to stop it, customers complain, they do the minimum to support it,

Agree with that (there is a lot of dark matter), but I would not call it "managed". They try to stop it, customers complain, they do the minimum to support it, repeat. For a decade. There is still no VB plugin for VS Code. They completely missed the chance to bring VB to Linux. To Notebooks. To Blazer. To Razor pages (vs eg php). It is not advertised, it is never considered for first wave and most of the time never considered for a use case. Compared to that, F# is managed (by a peer of the C# group), advertised, and arrives everywhere.