Purgatory is a place of punishment and suffering Limbo is a place like heaven but with no access to the Holy Presence.
In Purgatory you suffer pains to atone for your sins that should have been suffered in life but didn’t and you did not confess to in the confessional.
It is basically Hell but temporary.
“ Purgatory is a place of punishment and suffering”
Actually it’s a place of purification in preparation for heaven.
Pontiac - the Catechism clearly says that Purgatory is not a place, but the final stage of sanctification.
It is not a place of (or stage of) punishment and suffering.
It is meant for those who are headed to heaven not those headed to hell. It is not a second-chance as basically the people undergoing the purification are headed to heaven, just need a bit more washing by the blood of the lamb to enter heaven