https://bugs.winehq.org/show_bug.cgi?id=43239
--- Comment #22 from Shmerl shtetldik@gmail.com --- (In reply to zefkerr from comment #21)
You're not quite right. This information is out of date. Now MaxVersionGL is needed only for vanilla Wine. Since Wine Staging 2.12 it automatically uses the OpenGL core context when necessary.
The howto is useful not for staging wine, but for minimal patchset needed to run the game.