Well, and worse, Windows was itself a hive of inconsistency. The most obvious example of UI consistency failing as an idea was that Microsoft's own teams didn't care about it at all. People my age always have rose tinted glasses about this. Even the screenshot of Word the author chose is telling because Office rolled its own widget toolkit. No other Windows apps had menus that looked like that, with the stripe down the left hand side, or that kind of redundant menu-duplicating sidebar. They made many other apps that ignored or duplicated core UI paradigms too. Visual Studio, Encarta, Windows Media Player... the list went on and on.

The Windows I remember was in some ways actually less consistent than what we have now. It was common for apps to be themeable, to use weirdly shaped windows, to have very different icon themes or button colors, etc. Every app developer wanted to have a strong brand, which meant not using the default UI choices. And Microsoft's UI guidelines weren't strong enough to generate consistency - even basic things like where the settings window could be found weren't consistent. Sometimes it was Edit > Preferences. Sometimes File > Settings. Sometimes zooming was under View, sometimes under Window.

The big problem with the web and the newer web-derived mobile paradigms is the conflation between theme and widget library, under the name "design system". The native desktop era was relatively good at keeping these concepts separated but the web isn't, the result is a morass of very low effort and crappy widgets that often fail at the subtle details MS/Apple got right. And browsers can't help because every other year designers decide that the basic behaviors of e.g. text fields needs to change in ways that wouldn't be supported by the browser's own widgets.

> First, what he calls "the desktop era" wasn't so much a desktop era as a Windows era - Windows ran the vast majority of desktops (and furthermore, there were plenty of inconsistencies between Windows and Mac).

That's overemphasising the differences considerably: on the whole Windows really did copy the Macintosh UI with great attention to detail and considerable faithfulness, the fact that MS had its own PARC people notwithstanding. MS was among other things an early, successful and enthusiastic Macintosh ISV, and it was led by people who were appropriately impressed by the Mac:

> This Mac influence would show up even when Gates expressed dissatisfaction at Windows’ early development. The Microsoft CEO would complain: “That’s not what a Mac does. I want Mac on the PC, I want a Mac on the PC”.

https://books.openbookpublishers.com/10.11647/obp.0184/ch6.x... It probably wouldn't be exaggerating all that wildly to say that '80s-'90s Microsoft was at the core of its mentality a Mac ISV, a good and quite orthodox Mac ISV, with a DOS cash-cow and big ambitions. (It's probably also not a coincidence that pre-8 Windows diverges more freely from the Mac model on the desktop and filesystem UI side than in regards to the application user interface.) And where Windows did diverge from the Mac those differences often ended up being integrated into the Macintosh side of the "desktop era": viz. the right-click context menu and (to a lesser extent) the old, 1990s Office toolbar. And MS wasn't the only important application-software house which came to Windows development with a Mac sensibility (or a Mac OS codebase).

I partially agree with you, but additionally there's a whole set of employees who would be clearly redundant in any given company if that company decided to just use a simple, idiomatic, off the shelf UI system. Or even to implement one but without attempting to reinvent well understood patterns.

One reason so many single-person products are so nice is because that single developer didn't have the time and resources to try to re-think how buttons or drop downs or tabs should work. Instead, they just followed existing patterns.

Meanwhile when you have 3 designers and 5 engineers, with the natural ratio of figma sketch-to-production ready implementation being at least an order of magnitude, the only way to justify the design headcount is to make shit complicated.

Conventions already existed in DOS (CUA) and MacOS. The point is, every operating system had its user interface conventions, and there was a strong move from at least the mid-1980s to roughly the mid-2000s that applications should conform to the respective OS conventions. The cross-platform aspect of the web and then of mobile destroyed that.

Yeah the author conveniently ignores the fact that the UX of Mac apps was radically different to that of PC apps, so it’s not that designers/developers were somehow more enlightened back then, it’s just that they were “on rails”

> Developers weren't so much "following design idioms" as "doing what is easy to do on Windows".

Most people only uses one computer. Inconsistency between platforms have no bearing on users. But inconsistency of applications on one platform is a nightmare for training. And accessibility suffers.