Why is it a lie that 90% of players of Black Myth: Wukong are Chinese?
Firstly, this data comes from GameDiscoverCo, and the tweet was posted in the early hours of the morning in U.S. time.
Secondly, according to other sources, such as Gamelytic statistics, 80% of players are Chinese. We can also infer from more reliable data; SteamDB provides real-time player count graphs, showing that even at the lowest points of the curve, there are still over 270K players engaged, which is around 23:00 UTC (7 AM Beijing Time, 19:00 New York Time, 0:00 UK Time). I doubt East Asian and Southeast Asian players would be playing through the night, and by this time, Europe is already in the late night hours, meaning that only American players are likely active, yet there's still over 11% of players in-game.
If we exclude the Beijing Time period of 18:00 to 1:00 (when most Chinese players would have finished work or school and start playing), there are still over 1300K players online
In conclusion, no doubt that most of the players are chinese, but 90% is exaggerated.