The title should probably specify AirPods 2 and 4. As an owner of AirPods Pro (1st Generation), I was confused because I've only ever had two options: noise-cancelling or transparency. There has never been an option for “off,” so presumably this was a new feature in later generations, which the author explains is no longer available.
Hey, thanks for the feedback. Yeah, I toyed around with how to make it work in 80 characters but there were tradeoffs. The post itself has always specified in its title: "AirPods Pro 2 and AirPods 4". I would try again with the HN post title (something maybe like "Apple pushes newer AirPods owners into Transparency mode, with no easy opt out") but, alas, the window for me to edit the title has closed.