11 months ago - AndrewT - Direct link
I'm afraid openGL is not longer supported in this game

Deprecation of OpenGL Support for MacOS and Linux

Hello everyone! We're announcing today that with the release of Wards & Wardens, Crusader Kings III will no longer support the OpenGL renderer on MacOS and Linux as we shift our focus towards better support for the Vulkan rendering API. OpenGL... forum.paradoxplaza.com forum.paradoxplaza.com
One consequence is the game will not longer run on unsupported video hardware such as your Intel video system. All you can do right now is revert to the previous game patch 1.10.2 , in the Steam Betas tab for the game.

I hope you have, or will soon be able to get, access to supported hardware.

All the best!