VLC won't work on Ubuntu 20.04.3 LTS with NVidia card
Solution 1:
Confirmed with pretty old Nvidia GT425M and Ubuntu MATE 22.04 LTS (development version). Need to note, that I do not have Ubuntu 20.04 LTS on real hardware, so tested the latest version.
You have just discovered well known bug 1890815. Please mark yourself as affected.
It is fixable by manual download and installation of relevant package which contains nvidia_drv_video.so by using commands below:
cd ~/Downloads
wget -c http://archive.ubuntu.com/ubuntu/pool/universe/v/vdpau-video/vdpau-va-driver_0.7.4-6ubuntu1_amd64.deb
sudo apt-get install ./vdpau-va-driver_0.7.4-6ubuntu1_amd64.deb
and reboot.