I give you a well thought out macos shortcut for example. Ok, it is for a niche feature people rarely use... Screenshots, put straight to the clipboard.

On windows you have 2 options, bot pretty unintuitive:

1. You can either press PrintScreen button... (OK boomer, who uses a full size keyboard? My RGB clicky-keys 57% keyboard doesn't even have backspace, return, escape or delete, I don't even know when I saw a keyboard with Printscreen. My Neofetch-fork does save the screen, and otherwise no need for screenshots...)

2. Or you may press Win+Shift+S. Ok it is hard to memorize, how does S even relate to Screenshot?

Meanwhile on the intuitive MacOs to do this you only have to press Command+Option+Shift+4. So intuitive and easy!!! Also way easier to press, just try it! Only 4 keys to press at the same time, in a very convenient layout, way better than that illogical windows shortcut.

Sarcasm aside: It is clear why Microsoft is well known for the fact that in the 1990s they put a lot of effort to usability research, and why Apple is famous about Steve Jobs being the BDFL, and things had to fit his personal taste.

They didn't mention cross-OS shortcuts, though. I interpreted "across the operating systems" as meaning "across the various versions of Windows". Yes, Windows is more consistent with their own common shortcuts. But Macs have exceedingly consistent shortcuts across Mac applications, compared to my experience with Windows and especially Linux.

I might also point out that Mac had keyboard shortcuts before Windows existed, so it's not really fair to describe them as the "different" one when MS chose their own, different shortcuts for Windows.

Many of those shortcuts already existed in macOS before they were added in Windows. Inversely, a lot of desktop Linux stuff was designed specifically to mimic the Windows behaviour.

So, really, it's Microsoft that decided "we're different".

Also, as somebody who sort of lives in the terminal, the lack of the Command/Ctrl distinction is one of the things that really bothers me about Windows. In default GUI applications, application shortcuts use Command, and Ctrl is used almost exclusively for headline-style shortcuts (ctrl-k for kill line, ctrl-a for home, ctrl-e for end, etc). Ctrl-a Ctrl-shift-e is kind of baked into my brain as "select whole line".

The big one for me on Mac was refreshing a web page being CMD+R rather than F5.

Not to mention the muscle memory for pressing CTRL in the corner of the keyboard rather than CMD where Alt is.

Though I will say that having "Copy" (cmd-c) being different from ^C (ctrl-c) was kind of nice. Though Terminal has done a nice thing of making it so if you highlight text, Ctrl-C copies the first time you press it, and sends ^C the second time.

If you want a little more consistency for muscle memory, ctrl+L goes to the address bar on Windows the same way cmd+L goes to it on Mac. Same for ctrl+W and cmd+W to close tabs.