Does anyone know the state of C# support and documentation? I played around with Godot in the early days of C# support, and I found I had to translate from its documented API calls in GDScript which was quite cumbersome.
It's pretty well featured for hobby projects and experimenting. You can translate any GDScript example into C# on nearly a 1:1 basis. So honestly "C# docs" are not needed.
The big turn off for me, which I only came to the realization after my 160hrs, is that there is no easy way to performance analyze/tune your code. You have to manually instrument with Timers and even that is of limited utility when you have unknown 15ms+ spikes every couple seconds (and that's not even GC related).
My desire getting into Godot was to build a job/ecs system similar to unity (because I did this 10yrs before with my own xna based engine) but sadly, until there is better perf tools this is a futile task.
Would your XNA based engine work with MonoGame and/or FNA?