The IPad Pro OLED screen crushes the Pro Display XDR, sorry but it just does, even the MacBook Pro Mini LED screen is better and supersedes it. If Apple doesn’t release a tandem OLED Pro Display XDR update it IMO isn’t with 1P let alone 6 grand, for when the MacBook Pro gets it’s rumoured tandem OLED screen again it will supersede any Mini LED display. If Apple do make a 32” 6K tandem OLED monitor with it’s design aesthetics its an instant buy, well after saving a lot of money, for me.
EDIT:
Disclaimer: I say that as someone who selfishly adores the deeper more rich colours on the iPads screen and as someone who is in no way a professional colourist, or photographer or videographer, or needs accurate calibrated colours for any work load. It's just in my eyes Apple and their supplier made one hell of a screen with my M4 iPad Pro, and the M5 iPad Pro now. Compared to my M3 Max 14" MacBook Pro screen in HDR it looks a looks much richer.
Their are 6K screens on the market now, even 8K 32" Mini LED from Asus that is cheaper the the Pro Display, I am not sure just adding a quantum dot filter as rumoured is enough, and it doesn't need speakers or a built in webcam. It just needs multiple inputs and a killer screen in an update.