“[I]t is appointed unto men once to die, but after this the judgment. Hebrew 9:27.”
Purgatory in no way stops anyone from dying ONCE - in fact that’s what has to happen for you to get there.
So what’s your point?
Since time effectively ends at death, becomes infinite, the concept of Purgatory seems meaningless.
Purgatory is a holding cell after death that is not at all supported by Scripture.
After death comes the judgment for your deeds in this life. There is no such intermediate place after you die where you can somehow escape judgment.
But if you’ve received Christ, you’ve already been judged with him and have died with him, so there’s nothing left for those in Christ except for salvation and eternal life.
How many times did Stephen die??