Xorg.conf: Settings that disable buggy/defunct Nvidia driver components like Vulkan etc

Because of unbearable frequent long-duration freezes, I would like to circle in the bad components of the Nvidia driver.

For this it is necessary to completely disable things like Vulkan, accelerators etc.

It has to be done this way, because software, window managers, desktop managers all depend on drivers that work. It is not feasible to configure any and all software individually not to use Nvidia Vulkan. The way to go is to turn off the Nvidia Vulkan driver entirely, that it does not get installed and so can no longer trick software like Gtk into using it. Please see here for a more detailed description of the issues.

So, what are the xorg.conf options to disable Vulkan and all this stuff?

It seems to me that you using Nouveau open-source driver may be a solution for you, but you would need to provide more info about your use-cases…