Some of them are, at least on Apple's side, but it's always for a good technical reason. Screen recognition is only available on devices that have a neural chip

Some of them are, at least on Apple's side, but it's always for a good technical reason. Screen recognition is only available on devices that have a neural chip, things that require lidar don't work on devices that don't have lidar and so on. Google is worse at this, Talkback multi-finger gestures used to be Pixel and Samsung exclusive for a while, even though there was no technical reason for it. Apple has a different problem, many accessibility features aren't internationalized properly. Screen recognition still has issues on non-english systems, so do image descriptions. Voice Over (especially on Mac) didn't include voices for some of the less-popular languages until very recently, even though Vocalizer, their underlying speech engine, has supported them for years. Siri has the same problem.