It kinda depends for me. I have some I wouldn't mind, I think they were decent fun bits of fiction, but others... Some are just "This was fun, completely non-serious" that I'd really want to clean up into a more coherent narrative, and others have involved some deeper personal exploration.

Nothing's written down, but I'd be happy to show them off. My private RPs are low-stakes adventures with ridiculous characters. My current headgame is about a stupid goblin thief pursuing a cat for the jewel on its collar and accidentally crashing an engagement party. I call it "Snickers the Goblin spies a shiny".