Should I eat less during a deload week?

The instinct makes sense. You're training less, so it feels like you should eat less. On Ep. 366, Nikkiey is blunt: do not reduce your food intake just because training is lighter. A deload is when your body is rebuilding and adapting from the weeks of work you've put in, and that process needs fuel. In her words, this is the week to fuel the hard work you've been building, not the week to cut aggressively.

On Ep. 131 she adds some nuance. Because you burn less energy in your workouts, you may need to bring calories down slightly, depending on your goals, mainly if you're trying to lose body fat. The key word is slightly. She warns that many people hear "eat a bit less" and drop 500 calories, which pushes them into a deeper deficit right when the body needs food to recover and hold on to muscle. She also points out that you're still active, and for some people nothing needs to change at all. She doesn't adjust much herself, because she carries a lot of muscle and it needs the food. Eating normally and maintaining is fine. As she puts it, maintaining is where the magic happens.