@markzero Yep. Even the native Lutris for Ubuntu won't work. But it did with Pop!_OS (though again, the flatpak distribution is more updated).
There's definitely something Lutris needs but is not showing us when trying it on Ubuntu.
In any case, with Pop!_OS, while not exactly made for gaming, for me, it's the best Ubuntu-based distro for gaming; and flathub is integrated by default. So, it's a plus too.
If you have an NVIDIA card, they also have an NVIDIA release with the proprietary NVIDIA drivers installed (if you prefer that).