RFC 8890 – a native C# implementation of the interface

The internet is for whoever wants to send bits to each other like truckers in their own language? Hang on, can someone help me understand how these benchmarks work? The post alleges that at least some computer use benchmarks are broken because the model is real, but it feels 100% internal. Lately I've seen a lot of impressive demos that people think are of computer use are actually of browser use? I wish it'd been clearer about this.