My Methodist wife and I have a running joke that one of us will be awful surprised upon dying to discover the other was right about the existence of Purgatory. That’s as far as it goes in our household, attempts to convince each other in the past have gotten exactly nowhere. I’ll show her the pertinent Scripture and she’ll say, “Is that it? Nothing else?” and she’ll tell me Christ already died for her sins so there’s no further need for purification. My response to her is about needing a shower after spending time at work being similar to the need for spiritual cleansing after life on Earth.
Like I said, it goes nowhere. At least we can laugh it off.