Me too. Now I have a laptop with discrete nvidia and an eGPU with 3090 in it, a desktop with 4090, another laptop with another discrete nvidia.. all switching combinations work, acceleration works, game performance is on par with windows (even with proton to within a small percentage or even sometimes better). All out of the box with stock Ubuntu and installing driver from Nvidia site.

The only "trick" is I'm still on X11 and probably will stay. Note that I did try wayland on few occasions but I steered away (mostly due to other issues with it at the time).