I think pacman support somethings similar. In /etc/pacman.conf you can add packages to a ignore list. I only used it when nvidia driver gives me problems which it has been a few years at this point.

# Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
#IgnorePkg   =
#IgnoreGroup =

I kinda need ffmpeg to be up to date and want ffmpeg-full to be accessible. Not sure how this feature solves my needs.

Luanti (Minecraft Foss clone) 0 A.D. DAW’s like Ardour, LMMS, and Reaper MPV OBS Studio Kdenlive or Davinci Resolve Godot Engine ffmpeg