I've been using my MacBook with an external display attached. Typically, I use it with the laptop closed, and the display on.
After upgrading to Ventura, I noticed something off about my external display's colors. The best I can describe it is that the yellow and green colors appear too "greenish". Interestingly, the problem resolves itself as soon as I open the lid of my laptop which is attached to the monitor.
Here are the display settings if they are helpful.