Does Casuarina Linux support NVIDIA's propietary drivers? The reason I am not using Chimera is that you can't really run drivers in a distrobox or anything like that, so that's very important to me.
It does not currently. Due to the hassles with the proprietary driver I stopped buying any NVIDIA hardware back in 2019. Casuarina does theoretically make it possible to support, but that work would need to be contributed by someone else. q66 mentioned the other day:
and for nvidia drivers you need even more stuff like systemwide integration of glvnd and whatnot
So it's not just a simple matter of just packaging up the driver.