I am a bit skeptical that they are "reaching for the best."

Once you start to hire and promote folks with a certain "corporate culture," they start hiring and promoting folks that fit that culture (and driving out ones that don't). I suspect that the problems actually started years ago, and now, those managers are hiring less-than-stellar SWEs, managers, and designers.

The thing about the really good people at Apple, is that they don't need to be subjected to an ugly corporate culture. They'll take their toys and go home (or to other companies), which is pretty much exactly what the less-than-stellar people want. The dichotomy of hiring high-Quality talent, is that they don't need to work for you, so you have to figure out ways to keep them. Often, money isn't the biggest driver. The good ones don't do it [just] for the money, and they'll always be able to make plenty, so, as their manager, you need to figure out what they really want.

I’ve been an early adapter since my first iPhone in 2009. But the new UI is plain ugly, lacking general accessibility, and full of bugs to the point that it’s just user hostile at this point.

They broke almost all of their design guidelines and make everything useless bubbles, I just cannot believe that Apple released this ugly thing to billions of devices.

I observed that too. Polled a few people I know who upgraded and they all have the same impression that they'd rather turn it off. I shared the accessibility settings with some to help them out. I haven't upgraded my main phone might have to wait a while longer.

This has to be resume driven. I presume designers at Apple have to end the year with a review to justify their salaries. "So Bob, what would you say you do here?". The answer "Well not much, we designed things nicely already, and now we're just chilling, listening to podcasts and having 2 hour lunches" is not going to fly. They want to say something like "That flashy glass thing, we did that!". Except, in this case I wish they'd all just be chilling and having 2 hour long lunches, instead of messing with the interface since they apparently managed to make things worse.

I'm currently in the process of adding support for the new UI to my macOS app. The biggest problem is to make it look good on the previous macOS version and on the new one. I still have more than 50% users on pre-glass.

I have more a problem with the menu structure then the glass effect.

On iOS it feels unfinished, on macOS it feels unpolished. This has the potential to be pretty, or at least usable if you don't like the glass look, but someone needs to finish the process of porting to liquid glass.

XP is sort of like Fisher-Price for Windows, but is usable. Vista ... was something else.

I wonder where a decent alternative will be lurking in the next few years? Apple is losing some grip, but all others are still worse overall.