I am not sure why you go on the subject of English speaking world etc. Anyway, the models you tested with that query, which I am not sure why we think is a good benchmark, are local models running on a wireless device or they use datacenter and only convey the text back and forth?

I'm fairly sure Siri still sends user voice samples to a data center. At least for a while, it used to use multipath TCP to decrease latency over multiple available network connections if I'm not misremembering.

Some modern Apple devices support "local Siri", but it's a limited subset of both voice recognition performance and capabilities.