Anecdotally, as a counterpoint, I asked for refunds on the iOS App Store maybe twice in a row and since then every purchase was met with a dialog where I had to confirm I waved my right to a refund.

This was over a decade ago, so may be very outdated. I don’t even think in-app purchases were yet a thing. I wasn’t trying to abuse the apps (I pay for software) and was in fact trying to use the refund policy to allow me to buy more apps because I could test without the fear of paying for duds. Their policy had the opposite effect and I basically stopped buying on the App Store.