[2023] How to fix ck3 if it doesn't work with vulkan renderer in mac?

Is this an Apple Silicon (M1/M2) Mac? if so, the short answer is probably "nothing" I'm afraid!

Otherwise, does it have an Intel or AMD video system?  

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log , exceptions.log

Also in Steam please click on Steam-Help-System Info, and paste everything there into a text file and attach that here.  

shoshee123 said: idk where Steam-Help-System Info is..

With the Steam app in focus, look up the very top-left of the Mac screen. You'll see titles Steam-Account-View etc. The last one is Help, System Info is in there.

And please attach all this requested info as text files rather than pasting in their contents here, thanks.