How can I combine MangoHud and game variables in the steam launch options?

I can't believe I got the solution and it was so simple.

MANGOHUD=1 MANGOHUD_CONFIG=full %command% '-oldgameui'

For you who have the same problem, combine the variavis that will work, now I can see the vukan hud modified with MangoHUD and use the old ui game menu.

Information, the new ui game menu does not appear on the screen using dxvk/vulkan.

Regards,

Gabriel