I can also lay claim to having Google Voice since....forever.. (is there a way to check?) I only use it for things like calls to/ from international numbers as its cheaper than TMobile and giving it to ...... places like car dealer ships and mortgage companies.

Anyways, back on topic, I became aware of this the other day, no idea if its useful for getting a US Number in China, but it might be...

https://www.numberbarn.com/