[foepys]

Since .NET 10 still doesn't support Type Libraries quite a few new Windows projects must be written in .NET Framework.

Microsoft sadly doesn't prioritize this so this might still be the case for a couple of years.

One thing I credit MS for is that they make it very easy to use modern C# features in .NET Framework. You can easily write new Framework assemblies with a lot of C# 14 features. You can also add a few interfaces and get most of it working (although not optimized by the CLR, e.g. Span). For an example see this project: https://www.nuget.org/packages/PolySharp/

It's also easy to target multiple framework with the same code, so you can write libraries that work in .NET programs and .NET Framework programs.

[pjmlp]

Most likely never will, because WinRT is the future and WinRT has replaced type libraries with .NET metadata. At least from MS point of view.

The current solution is to use the CLI tools just like C++.

However have you looked into ComWrappers introduced in .NET 8, with later improvements?

I still see VB 6 and Delphi as the best development experience for COM, in .NET it wasn't never that great, there are full books about doing COM in .NET.