Raspberry Pi4 video

Has anyone managed to play videos using smplayer, vlc, or mpv? I can play videos on Youtube via Firefox. Many missing dependencies I can’t fulfill. Any suggestions will be appreciated.

When running the native Raspbian OS .mp4 videos play just fine in VLC. I haven’t tested any other format yet. It looks like a version of Ubuntu Buster. Not an OS of my choice.

pi@raspberrypi:~ $ cat /etc/*release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"