https://bugs.winehq.org/show_bug.cgi?id=56009
--- Comment #8 from Nathan Bennett version2013@protonmail.com --- I can confirm that the errors do not appear at every prefix update.
The game I tried running days ago, I tried again today with 9.0-rc1 and 9.0-rc2
A few times launching the game I got several "X Error" messages but game still ran. Other times those errors failed to appear and game ran fine.