Mysql backend for prosody

Iam trying to understand if there is any advantage having mysql backend for Prosody. Right now, in my configuration.

Component “conference.meet.runsimple.cloud” “muc”
storage = “memory”

Component “internal.auth.meet.runsimple.cloud” “muc”
storage = “memory”

Will i have the conference information stored in mysql, and probably can use it later ?