Install libnvidia-decode-390 by entering the following commands in the terminal:
sudo apt update sudo apt install libnvidia-decode-390
NVIDIA Video Decoding runtime libraries
This package includes the NVIDIA CUDA Video Decoder (NVCUVID) library which provides an interface to hardware video decoding capabilities on NVIDIA GPUs with CUDA. . The package also provides a VDPAU (Video Decode and Presentation API for Unix-like systems) library for the NVIDIA vendor implementation.