Yes. Creatine is one of the most researched supplements in existence and the evidence applies well beyond bodybuilding.
Most men think of creatine as something for people trying to get huge. That's a marketing association, not a scientific one. The research covers strength, power output, muscular endurance, recovery, and increasingly, cognitive function. None of that is bodybuilder-specific.
What it actually does
Creatine increases the amount of phosphocreatine stored in your muscles. Phosphocreatine is used to regenerate ATP, which is the energy currency your muscles use during high-intensity effort. More stored creatine means more fuel for intense work before fatigue sets in.
In practical terms: an extra rep at the end of a set, a second sprint before your legs give out, faster recovery between rounds. Over months of training, those small gains compound.
Who benefits
Any man doing any kind of strength or interval training. Recreational lifters. Runners who do sprint work. Five-a-side players. Men who train three times a week and just want to get more out of it.
The effect size is consistent across training levels. You don't need to be advanced to benefit.
What it won't do
Creatine won't make you lean. It causes some water retention in muscle tissue initially, which can add a small amount of scale weight. Some men mistake this for fat gain and stop taking it. It isn't fat. Your muscles hold more water when saturated with creatine. That's the mechanism, not a side effect.
If you're training and not taking creatine, you're leaving a simple, cheap, well-evidenced gain on the table.
Related reading: Does creatine affect testosterone?, How long does creatine take to work?