The United States owns and operates the `.gov` domain, US only is implied.
No one else uses the gov TLD. Gov.xx maybe, but that’s a different TLD.
classic us defaultism. "the government" and no specifying needed
This is a predominantly US site, run by a US business. There's other nationalities on here, which is great, but it's going to be US-centric.
Feel free to take it up with ICANN.
At the time .gov was defined, the entire DNS system was a US military project on the ARPA-Internet. It was neither global nor publicly accessible at the time.