It's bigger than you think. In Q1 of 2020, the total American player base was ~27-30 million playing on PCs and Consoles and about ~150-200 million on mobile. In comparison, in Q1 2020, China had 90+ million PC players and over 500 million mobile players.
After the pandemic, the total almost doubled for both countries.
One of my favorite articles to come out of this was that CDPR, the guys behind Cyberpunk 2077, actually had a whole manual/book just to teach Polish developers how to develop and market their games to Chinese audiences. The best part is that it worked pretty well; the Chinese community widely praises the book.
Just goes to show the importance of the Chinese market.