https://bugs.winehq.org/show_bug.cgi?id=5941
--- Comment #30 from Carl G carl.gherardi@gmail.com --- I was developing a native linux HUD for PokerStars at the time this was reported, and I flagged this as it caused some fun interactions with an overlay.
The link you used should be the same client as the various reports. The client supported multiple languages and the localised sites (at least used to) linked to the same binary.