I would love a large-ish ultra-wide with > 160ppi. One day, maybe, that being said, by that time those things will exist and be reasonably priced, my eyes might not be able to appreciate the difference.
The only real monitor upgrade I'm willing to entertain is a ~50" 8k curved screen (basically a curved TV-sized screen), which has not been made yet AFAIK. I'm not into "ultrawide", for me it has to be "ultrawide" and "ultratall". I want all that screen real estate in high PPI.
I tried test-driving a 50" 4k TV for a week and the flatness of it was not what I wanted, it has to be a curved screen for workstation use.
Your dream is probably a ~50in 8K TV (with RGB pattern if you are on macOS), but curved. I don't know if that will ever exist.
Personally, I found that with a bigger 16:9, I would not use the top and bottom of the screen. When I "downgraded" to a 40in ultra-wide, there was not much difference in the space I was using.
What planet are those people on? That's Gucci bag territory. They can take their res and shove it, that's almost NINE GRAND (granted, Canadian pesos) for a freakin display! Who is this for, just Pixar employees?
There’s huge monitors from other companies that come with mounts that handle more weight than that. Granted, it’s not some art deco CNC monstrosity.
I think the sibling comment nailed it: this is just a status symbol.
And looking at Amazon.de listings, it's definitely possible to buy a cheap arm that's good for 7.5 kg. A "suptek Monitor Mount" is good for 10 kg according to the listing: https://www.amazon.de/dp/B0833NQ8CR
We're not just talking about Apple's stand-alone display, but even their laptops are high-ppi. 13" M4 Apple Air:
> 13.6-inch (diagonal) LED-backlit display with IPS technology;2 2560-by-1664 native resolution at 224 pixels per inch