I’m of the opposite opinion. Exit interviews are just a way a company can further pretend to give a shit what you think, while not actually giving a shit. Do you really think what you say will make a difference?? If they didn’t listen to you while you were working, why would they listen to you if you’ve quit? It’s all smoke and mirrors designed to make you feel good while giving the company marketing material to say, ‘we listen’ when they don’t. HR is on team company. They are not your friend. The odds of them actually doing anything different based on an exit interview is zero. If anything, they’ll use what you say against you to frame it as ‘clearly he/she is not a happy person’ so they just dismiss what you say. Just like they did when you were working for them.

I deny them that chance so I don’t do them.

Fuck them. Leave and say nothing and just be happier at your new job. They had their chance and blew it. You don’t owe them anything and you’re better off channeling that energy into something more in line with what makes you happy.

That’s just my take though.