That's about Chinese people in the US. The headline explicitly says "people in China".
Note that even for Chinese people in the US (myself included), Signal was in my experience a pretty minor choice when Trump was trying to ban WeChat. Whatsapp, Line, etc were among the favorite alternatives.
Note that even for Chinese people in the US (myself included), Signal was in my experience a pretty minor choice when Trump was trying to ban WeChat. Whatsapp, Line, etc were among the favorite alternatives.