Sometimes my Unreal Engine gets confused about which GPU to use, giving the error “Cannot find a compatible Vulkan device that supports surface presentation”. I am fixing it by adding -graphicsadapter=X. For example, /mnt/Texas/prj/ue5.4/Engine/Binaries/Linux/UnrealEditor ~/prj/TheFinalAct/TheFinalAct.uproject -graphicsadapter=2