Yes, 4UR ambient lighting is standard across all BMW X5 models. You've identified the primary ones.
If you honing in on lighting on the front multi-contour seatbacks, yes it's there.
Scanning the parts library. Looks like multi-contour seats include ambient interior lighting - see Part No. 6. A forum member's X5 with standard sport seats would need to confirm.
You might want to mute this video to view the light show.