Just because it’s not the most important doesn’t mean it has zero effect. Maybe people who don’t have the right things lined up shouldn’t try to optimize it but that doesn’t mean there is zero net benefit to it.
I aim for more on hard days of training, less on days off.
As I get higher into a surplus I tend to have less of a “difference” between days just due to the fact I need so many calories anyway that I have to get them in over the course of the week almost in any way possible.