I think hardware side, Apple has yet to peak, Their stuff just set the trend. be the notch, the lack of audio-jack, the super high resolution display, the subnotebook form factor, etc... and even now, amd and intel try to catch up with apple cpu that focus on power efficiency rather than dumb raw power.
On the other hand, i feel like software side, the quality have deteriorated a lot. More and more bugs, memory leaks, bloat... remember when macOS/iOS was super clean and lean and stable while windows/android was a nasty buggy mess? Windows and Android got a lot better now while apple software stagnated. I still think apple OS are better but the gap is not as wide as it used to be.
On the other hand, i feel like software side, the quality have deteriorated a lot. More and more bugs, memory leaks, bloat... remember when macOS/iOS was super clean and lean and stable while windows/android was a nasty buggy mess? Windows and Android got a lot better now while apple software stagnated. I still think apple OS are better but the gap is not as wide as it used to be.