I have one of these. My Dad died last August (just before his 102 birthday) and he had bought himself a Pro Display XDR about 6 months before that. My brother is a PC person and I am a Mac person so I got the Pro Display.
It is an amazing display and I love it, but I would never buy one for myself. It is obviously fine for programming, but for me it really stands out as something for consuming entertainment, even though I only get 4K content. It is capable of, I think, 7K with the right computer and has 10 bit color depth. When my Dad first bought it, I used it to play Apple Arcade games on my iPad Pro - that was fairly spectacular.
EDIT: my Dad had a Black Magic video camera that I think had 8K resolution, and so he had a lot of fun with his setup.
It is an amazing display and I love it, but I would never buy one for myself. It is obviously fine for programming, but for me it really stands out as something for consuming entertainment, even though I only get 4K content. It is capable of, I think, 7K with the right computer and has 10 bit color depth. When my Dad first bought it, I used it to play Apple Arcade games on my iPad Pro - that was fairly spectacular.
EDIT: my Dad had a Black Magic video camera that I think had 8K resolution, and so he had a lot of fun with his setup.