Steam reports fatal error with missing OpenGL GLX extension not supported by display since December 6th
There is possibly another bug related to the classic driver cleanup, as I get the following error since 6th December and Mesa 22.0.0-devel (git-3580ffaa) when trying to start Steam (the snippet was taken from steam-native, but it also shows up with other steam runtimes I tried):
Loaded SDL version 2.0.17-6897280
OpenGL GLX extension not supported by display
OpenGL GLX extension not supported by displaysrc/steamUI/Main.cpp (409) : Assertion Failed: Fatal Error: OpenGL GLX extension not supported by display
src/steamUI/Main.cpp (409) : Assertion Failed: Fatal Error: OpenGL GLX extension not supported by display