[That is a real screenshot of a real text chat with a real AppleCare tech team Advisor]
Why not simply manufacture the display with a standard four-hole VESA interface, or the mount adapter included, and offer a sexy stand with an adjustable-height arm and a four-hole VESA interface? You know, like normal people would? [Keep in mind that American law considers corporations to be people because racism (it's true!).] My guess is that, as suggested above, Apple doesn't want the riffraff to mount filthy displays upon their gorgeous, nay, exquisite stands. Maybe some industrious 3rd party like Kensington or Brydge will make an adjustable-height stand with a VESA interface that looks like the integrated ones, and you can choose the VESA mount adapter option without regret.
"You want that sexy stand? Great. Comes with. You want a separate stand? Too bad. Sell you an interchangeable rear panel with the integrated mount option you prefer?
No. Because that is a choice that I have made."
?
Note: as long as the adjustable arm is an option, the stands have to have the different shapes; you can't just add the adjustable height arm to the tilt-only stand because too low, too top heavy. And you can't just make the one perpendicular stand because without that adjustable-height arm, you might as well be screwing it directly into a wall.
The original Studio Displays had a proprietary mount interface for the stands that came with. A little hinky to attach, but the displays could tilt and they were great. You could buy a VESA Mount Adapter, but it was expensive — not as offensive as this mishigas with these 2022 stands, but annoying and familiar. If we'd had the adjustable height option, I'd probably have bought it, grumbling about the markup.
But the iMac G4, AKA the iLamp, had an adjustable-height arm built into the attached monitor, and it was absolutely beautiful. Get me a hanky. An updated version would be awesome.
[Just me pretending to be Apple, the person, again, but I'd kinda have a point or three] "And you know what? Don't kvetch about the price. You're either a design professional or professional video editor, no other reason you should be buying this. Not even because it's aesthetically superior to, let's face it, any other brand's displays. Which, actually, is reason enough to buy it even if you aren't a professional. It's got an amazing camera, speakers and microphones built in — you're saving scrilla right off the bat! Sure it would be nice if it had ProMotion, but really, you want a 144Hz refresh rate? Go get a gaming monitor, ya knob! Mini-LED? Christ, why not Micro-LED or OLED while you're asking!? Mini-LED or OLED would drive the price WAY up. Micro-LED... I mean how much longer do you want to wait for this thing, much less pay for it? HDR? That's a function of the... Sigh. Look, just go get yourself the Pro Display XDR. Take out a ******* loan. Or get a whole giant TV for what you want! You... wait, you WHAT? You want it to work with Windows natively?? Read the room!! Oh hey. Hey now. I'm sorry. Come back. Wipe away those tears. Come. Come into the garden. It's beautiful here. Everything works with everything else here. Mostly. Most of the time. Is it perfect? No. But is it better here than out there, beyond the wall? Oh my, yes. You're adorable. Let me see your wallet."