If you're looking to buy a new display in the future but are not in a hurry, I suggest waiting for the MSI MPG 271KRAW16 display that MSI announced at CES this year. The specs of the panel are very similar to the new Apple XDR display:
- 5K, 27 inch
- miniLED with 2304 dimming zones, the exact same as the new XDR display
- 165 Hz refresh rate
- VESA DisplayHDR 1400 rating
- GLOSSY
This almost looks like the same panel, but the Apple Studio Display XDR seems to achieve way higher HDR brightness and the refresh rate in the MSI is slightly higher so I'm not sure. Apparently LG is making a cheaper display with this same/similar panel too, but matte and no dimming zones.
The rumored price is around $900 but this is completely unconfirmed. Bad news is that there is no actual release date (and that the case is pretty ugly and gamer-y compared to Apple).