Pacotes que instalo para suporte multimídia - e outros penduricalhos - no debian, ubuntu e distros derivadas:
$ sudo apt install alsa-tools alsa-utils bluez-alsa-utils ffmpeg ffmpegthumbnailer imagemagick \
gnome-video-effects gnome-video-effects-extra gnome-video-effects-frei0r \
gstreamer1.0-adapter-pulseeffects gstreamer1.0-alsa gstreamer1.0-adapter-gl \
gstreamer1.0-libav gstreamer1.0-libcamera gstreamer1.0-nice gstreamer1.0-tools \
gstreamer1.0-opencv gstreamer1.0-pipewire gstreamer1.0-x gstreamer1.0-plugins-bad \
gstreamer1.0-plugins-bad-apps gstreamer1.0-plugins-base gstreamer1.0-plugins-base-apps \
gstreamer1.0-plugins-good gstreamer1.0-plugins-ugly gstreamer1.0-rtsp gstreamer1.0-omx-generic \
gstreamer1.0-omx-generic-config gstreamer1.0-omx-bellagio-config \
gstreamer1.0-autogain-pulseeffects gstreamer1.0-convolver-pulseeffects \
gstreamer1.0-crystalizer-pulseeffects gstreamer1.0-fdkaac pipewire pipewire-alsa pipewire-audio \
pipewire-jack pipewire-libcamera pipewire-pulse pipewire-v4l2 tumbler-plugins-extra
KDE → instalo também kdegraphics-mobipocket kdegraphics-thumbnailers ffmpegthumbs
GNOME → vlc flatpak (prefiro)
Acho que coloquei 99,99% do necessário. Há diferença nos pacotes entre debian e ubuntu. bote tudo que for comum.
Todos são necessários? Não sei. Mas prefiro ter tudo instalado e não ter problemas.