I believe you have already been told that the grace you are touting is not God’s Grace, for God’s Grace is the source of justification, making those justified innocent then before the Lord. The Bible clearly illustrates this is an instantaneous event (Pentecost and the house of Cornelius) followed by God’s Life indwelling the justified, so purgatory is not a place the innocent/justified would be. The grace you are peddling in purgatory is a wickedness whose source would be the wicked one.
“I believe you have already been told that the grace you are touting is not God’s Grace...”
All grace is His.
1 Peter 5:10: And the God of all grace, who called you to his eternal glory in Christ, after you have suffered a little while, will himself restore you and make you strong, firm and steadfast.
“...God of all grace”
ALL grace.