Physical Education

It's sort of the basic beginner tips for people just getting into it, I received them as well and imo they're helpful in that you want to focus on so many things the first time you're lifting that it helps take away some of the doubts. Don't worry about what your head is doing, just look down etc. Of course advice should be suited to one's own level of progress.

Your head should follow the curvature of the spine but because our eyes have a tendency to linger on specific points (this is actually how they work), you might subconsciously start to fixate on a point and try to keep your head in line with that point (this is also how our vision works, we move our head towards the thing we look at so that we can center our eye on it). I actually do that with squats, look up at the speaker at my gym and stay on it because on the downward path it helps me keep my posture.

Ideally your cervicals follow your spine and your head itself always looks to the perpendicular. Roughly:

You have a 90° angle between the torso and the gaze. But that's in ideal conditions of course. It's just a rough model to illustrate how your head should naturally move during the lift. With experience it becomes easier to let your eyes naturally do their thing (your eyes dictate where your head moves) and not focus on them.

edit: If I make a quick edit of the spine model, "incorrect" head positioning looks like this:

The red line shows how the spine should naturally fall, in a straight or mostly straight line. But in this case with an upward head tilt we can see the cervicals (the green line) are not at all in line with the spine.