[qppo]

I don't think I've ever run into a "broken" API on MacOS.

But I haven't seen a "well documented" one either. There's a lot of arcane knowledge in targeting MacOS.

[saagarjha]

I've run into broken API without even trying…core things in like AppKit and Foundation, even. Many of them get fixed, but I find it difficult to believe that you've never run into buggy API on the platform.