[small voice in the wilderness]

the Purgatory is functionally explained in 1 Cor 3:8-15.

This is the judgement of BELIEVERS WORKS, where rewards will be given, NOT SALVATION, or a ticket out of "purgatory". (Gal. 6:8; Col. 3:24; Rom. 14:2; 2 Cor. 5:10).This judgement is in heaven (1 Cor. 9:24-27; Rom. 14:10; 2 Cor. 5:10).

This judgement deals with the BELIEVER as a servant.

[annalex]

the judgement of BELIEVERS WORKS, where rewards will be given

Yes. That is exactly what Purgatory is, a process of purification of a soul who is on its way to salvation. Note that the impuritues are purged before any reward becomes available.