Is it better to get a commuter bike with a front suspension or without one? Is a commuter/city bike without front suspension comfortable?
Commuter or city bikes are designed for paved surfaces. A suspension fork on such a bike is not going to add much comfort, except perhaps when riding over potholes or kerbs, which are avoidable.

Suspension forks add weight, which brings a different type of discomfort as you have to exert effort to move that weight around.

This gets worse the more inexpensive the bicycle is. Low end suspension forks are heavy and have poor performance.