> I really can't think of anything that comes close in terms of performance, features, ecosystem, developer experience.

This is also why I prefer to use Unity over all other engines by an incredible margin. The productivity gains of using a mature C# scripting ecosystem in a tight editor loop are shocking compared to the competition. Other engines do offer C# support, but if I had to make something profitable to save my own standard of living the choice is obvious.

There's only two vendors that offer built-in SIMD accelerated linear math libraries capable of generating projection matrices out of the box. One is Microsoft and the other is Apple. The benefits of having stuff like this baked into your ecosystem are very hard to overstate. The amount of time you could waste looking for and troubleshooting primitives like this can easily kill an otherwise perfect vision.