This is guide, howto enable NVIDIA accelerated 3D rendering and Wayland/Xwayland on Debian 12 Bookworm with NVIDIA 550.xx (550.76) / 535.xx (535.171.04) / 470.xx (470.239.06) proprietary drivers on KDE and GNOME. This is tested with the latest NVIDIA drivers, I assume here that you have installed NVIDIA drivers using https://www.youtube.com/watch?v=Rqj7yZCQgjM guide. This might work normally with any other installation methods too, but it’s not tested. Check full guide with commands from: https://www.if-not-true-then-false.com/2021/debian-ubuntu-linux-mint-nvidia-guide/4/