Since everything seems to work again with my new driver, including Steam, I think I will keep this driver.
By any chance, is there another way to enable VDPAU for Kodi without installing the Nvidia driver and without the risk of breaking my config like with Nvidia driver?
I found this:
Step 1
sudo apt-get update -y
Step 2
sudo apt-get install -y vdpau-driver-all