@markzero When I was still using Ubuntu, Lutris native and flatpak won't work for me.
However, it worked fine with Pop!_OS. I think there are deps Lutris needs that are already setup in Pop!_OS.
But what's weird is that, it should've worked as a flatpak installation regardless, yet it isn't.
In any case, try Pop!_OS, I'm using the flatpak version of Lutris as it's more updated. Then I combine it with the flatpak Proton_Qt to get the latest Wine, dxvk, vkd3d for both Steam and Lutris.