Re: Who invented what?
You're taking a mix of truth and pure fantasy and mixing them into a tale of silliness.
The reality is that Apple did what every other tech company did and does: Invent some stuff and borrow some stuff. They just do a very, very good job of it, better than anybody else.
Apple released the first good GUI operating system. Xerox showed them some demos, but they hadn't actually done a few critical things, like the concept of overlapping windows. Apple guys actually thought the Alto did some stuff that it didn't do, that Xerox couldn't figure out how to do, and the Apple guys implemented it anyway. The Lisa was already in development when the Apple guys got the hour and a half demo from Xerox. And Apple shipped it in 1983, it took Microsoft until 1995 to get anywhere close, and they still did a horrible job of it.
The Sony X505 was expensive crap. The technology wasn't ready, and they released it anyway. It was slow, and had almost no battery life. The MacBook Air was a thin machine released when the technology was up to building a thin machine, and they did it right. Sony didn't.
And while yes, macOS runs on a BSD-ish core (it's not BSD, it's Darwin, but it's definitely BSD inspired and BSD-ish, and that core is open source, you can download it from GitHub and build it yourself if you want) macOS is NOT just Darwin. It's a complete GUI operating system, with everything working far more smoothly than, well, anything else out there. The filesystem is Apple's design, the GUI is Apple's design, the "it just works" is Apple's design. Nothing before in the history of computers has just worked like macOS.
And while Apple isn't always the first with a technology, they're often the first to do it right. Look at the trackpad, while the PowerBook wasn't the first computer with one, it was the first with it centered in front of the keyboard, and it was the first with a truly usable trackpad, one that handles finger movements properly. Even today, Apple designs the best trackpads in the business, most PC laptops are incredibly frustrating to use with one, and many PC laptop users have to carry a mouse because their trackpads are so incredibly bad.
That said, yes, the fight over the roundrect is stupid. Apple didn't invent the roundrect, though they were the first to implement it in an OS the way they did, back in the early '80s. But the concept of a rectangle with rounded corners being an Apple invention is silly, and they need to back off on that.
But to call Apple a fashion house is disingenuous. Apple IS obsessed with making technology look pretty, sometimes to the point of hampering functionality these days, but they really do have some serious advantages over everything else out there as well.
And I'm not disparaging Samsung innovation either. They've done some great work on components, their screens are great, their SSDs are good, they've done some good stuff with RAM, they do top-notch components. But they're not good at fitting it all together like Apple is.
And every computer company out there copies Apple. Windows is and has always been a bad copy of macOS, going all the way back to Windows 1.0. Every laptop today is essentially based on the design of the PowerBook, the last time somebody tried something different it failed miserably - the IBM keyboard nipple, while still unfortunately with us on some laptops, is now always paired with a trackpad on the wrist rest. All-in-ones look like iMacs, laptops look like MacBooks (not infrequently with aluminum-painted plastic instead of machined aluminum like the MBP), and yes, phones look like iPhones, the others are even copying Apple's bad ideas like dropping the headphone jack.
Some of it (like the headphone jack fiasco) is fashion, some of it is just that Apple gets technology right. And unlike some Apple fans, I'm good with others copying Apple. Copies of good things are a benefit to everybody.