See how fragile the whole doctrine of Purgatory is? There is infinitely more Scripture that DISPROVES the idea than can ever prove it. No wonder Catholicism prefers to rely on “traditions” as much as Holy Spirit inspired scripture.
Scripture is best at explaining things. Starting there and being grounded in it, you can tell when something is “off” about a message or doctrine. Scripture allows one to sidestep labyrinthine Catholicism entirely, praise God for the simplicity that is in Christ Jesus!