I don't really get what the problem with MacOS is. It never gets in my way, so why would I switch? Yes, I found Liquid Glass ugly and two days later I completely forgot about it.
This is what happened for me. Total waste of effort complaining about it.
On the other hand, I found it quite pleasant and subsequently forgot about it. It’s out of my way and I focus on the task at hand.
It's like Linux users who scream about Arch KDE Plasma being better than Kubuntu XFCE++ and change their entire GUI every year. They're obsessing over rounded corners lining up. None of this matters that much.
It's more serious on iPhones cause it's glitchy in ways that will interfere with basic usage, also yet another "we need old phones to feel slower" update.