you're missing the point. apple is a ginormous company; it's not like they borrow the 3 people working on mac os to help with the apple watch, or stop working on new macbooks so they can work on apple tv.It makes sense when the big 'secret' projects at apple are AVR glasses...
...And a car.
The point I'm trying to make is that Apple is really shooting itself in the foot if it wants to move away from the personal computers category (a smartphone is a touch-based personal computer, of course) to categories where reliability and high quality is absolutely critical.
You want your brakes to always work, for example - not to crash occasionally.
I'd just like them to really start to prioritise stability over everything else.
Are the features that were launched in 15 for non 13 iPhones really worth rushing a release so that we could all have it in September? Has Focus modes and the Safari redesign really changed our lives?
Wouldn't it had been better if the software support for the 13 hardware had been decoupled from 15 so that 15 could've been launched when it was good and ready?
apple isn't moving away from anything, they're expanding. and focus, or the revised safari, are just details; we get new features with every OS, this is not new with ios15.
ios 15 is working flawlessly here, and has been doing so since the early betas. that speaks for me, not for you, not for everyone. so, it's not whether 15 is 'good and ready', it's... what issues are you having? and why not start a thread here to get help?