C# support is excellent. They received funding from Microsoft to add it, and it’s nearly as full featured as the native GDScript and it’s significantly faster (at least in 3.X).
Can’t really speak to the rest, although I believe occlusion culling is one of the killer features of the 4.0 release.
Last time I looked into it, it was too far behind still, but it looks like Godot 4 will be a really cool release