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.