This is one of the reasons I switched from Unity to Godot. There is something about Godot loading fast and compiling fast that makes it so much more immersive to spend hours chugging away at your projects for.
There might be some selection bias - Experienced programmers who care a lot about engine technology are more likely to use Godot and also optimize their load times. Unity includes a lot of first-time programmers who just want to get something shipped
