The timing of the change seems quite conspicuous [1], and it's also weird that Apple would introduce this in China first and only roll it out to the rest of the world next year. The same article mentions that Apple blocks the Taiwanese flag emoji in China, for which it's hard to come up with an explanation other than bowing to censorship.
1: https://chinadigitaltimes.net/2022/11/netizen-voices-apple-r...