Can't agree more. Recently started a personal project in .Net Core + Visual Studio. What a joy. Can't get away from the front-end completely, but I can at least enjoy the backend side immensely.
Have you tried Blazor? I wouldn’t invest time in it personally because I don’t see a market for it, but if I were just doing a side project for the project itself and not to learn a new marketable skill, I would give it a go.