There must be more at play here...
My Phantom Canyon enthusiast NUC11 with an RTX2060m chip inside also just gets 4 lanes of PCIe for connecting the i7-1165G7 SoC with the dGPU and can use Optimus or direct output, depending on the video port you use and it performs quite well on anything full HD up to 60Hz and thanks to DLSS.
BTW those are still being sold at near GPU-less NUC prices, and prices are slightly going up.
I've also run games on V100s using VirtGL and VNC on Linux and Unigines Superposition was impressive enough even across 600km distance between the GPU and the rendering screen.
I'd recommend some CUDA testing to ensure there is nothing else afoul in the setup.
And you can always run LLMs on them, even if 11GB isn't giant, the bandwidth might be better than fully enabled GPUs at similar prices.