sudo add-apt-repository ppa:graphics-drivers/ppa
ubuntu-drivers devices
sudo apt install nvidia-driver-450

For Steam

sudo apt install libnvidia-gl-450:i386

• KDE neon User Edition 5.21 (Ubuntu 20.04)

Terminal logs

• Install wifi BCM4352 driver from terminal on ubuntu based distros

• https://www.reddit.com/r/kdeneon/comments/jgdw30/best_way_to_install_nvidia_drivers_on_kde_neon/
• https://askubuntu.com/questions/834254/steam-libgl-error-no-matching-fbconfigs-or-visuals-found-libgl-error-failed-t/1211225#1211225