Papayas are marginal where I live in So Cal (as are bananas, they are able to be grown but if we get a good, hard frost, it kills the entire tree).
My neighbors across the street had a beautiful papaya with large fruit on it - don’t know if the fruit ever ripened or not - they had their gardener take it out, unfortunately.
As soon the fruit is ripe I might try starting a few of them and cutting them low and see if I can force them.