ideally those activities would be covered by any linux mint installation. distrowatch has what appears to be a comprehensive list of packages installed with 19.2. pulseaudio shows up on that list 5 times. alsa (also necessary for sound) is on it 3 times.
i found a few links that have some information on pulseaudio (freedesktop its disdributor, wikipedia, ubuntu) and some that describe how pulseaudio works with alsa on ubuntu-based systems like mint (superuser, ask ubuntu, mint forum).