While I try to be consistent and do a custom white balance all the time, I confess I sometimes get sloppy and choose to try and fix it in Lightroom.
Here is a photo I shot with my Nikon Z6 shooting with Auto White Balance.
When the camera is seeing this scene it is factoring in the projection screen behind the speaker which was a different color temperature than the speaker.
I realized all the photos on the stage were off, so I selected all of them and did a color balance based on my calibrated monitor. Here is the result.
I had used the eye dropper on a microphone. Well, it is close but not perfect.
Then the next day I got there early and asked the lighting guy to turn the lights on so I could go on the stage and get a custom white balance using the ExpoDisc. Here is another blog post on using the ExpoDisc.
This is shot with the custom white balance. Big difference in nailing the skin tone.
Moral of the Story: Get A Custom White Balance
I recommend using the ExpoDisc. You can use it to help you 1) White Balance, 2) Set Exposure & 3) Dust Mapping. Here are the instructions for doing all this if you didn’t already know how.