We're talking about web browsers. Pretty much everyone with a personal computer(including smartphones) needs one. The US makes no sense as a subset here. If we were discussing what markets for a company to target, then sure. But we're not, are we?
I and many people here abandoned Chrome, so it’s only relevant to me from a software development perspective.
In terms of software development a US specific audience isn’t uncommon. Local utilities and many government agencies etc just don’t care about foreign users.
> Unless you’re equally interested in non English speaking users then the global average is absolutely meaningless.
The US is not even the largest English speaking population, it’s India. Additionally, if a subset is to be chosen, why is this subset from the US? Why does it get to be the centre of the universe, especially for a general-use product like a web browser?
The point was it’s rare to care about global numbers, not that the US is the only meaningful subset.
As to why a US only subset may be reasonable vs a language specific subset, some US government agencies care about a global audience but many are US specific. They may have multiple languages because Americans aren’t all fluent in English.
