All I can say is that AppImage does not use any form of sandboxing or virtualization by default; so it is likely a driver/library compatibility issue? Try experimenting with bundling more/less components.
Thanks for the hints @probono . From what I see in the build script there is nothing in particular done to have any kind of graphic support: Whether is Mesa OpenGL or NVIDIA non-libre drivers for OpenGL & Vulkan.
So I’m guessing linuxdeploy/AppRun that builds the AppImage takes care of basic mesa stuff currently.
And I’ve been told in the Mesa chat (IRC #dri-devel@OFTC) that something like this is missing: probably the vulkan loader, probably also mesa vulkan drivers and maybe also the headers to build against.
Does that make any sense and does anyone what would be the next step? Could it be: opening a ticket to report that it seems that the AppImage building toolchain is missing something like vulkan loader/mesa vulkan drivers/vulkan headers.