It may be worth considering that a heavier person needs a stronger heart than a lighter one. The heavier weight also acts as a constant load/training. Without some degree normalization we won‘t know whether this is normal or concerning.
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With exercise, the heart muscles grow in a different way, and the volume of blood contained inside is not reduced. So without looking at the heart itself, we can't even tell whether a lot of muscle is good or bad, we also need to look at the rest of the context.
The athletes heart is going to beat at 1/2-1/3 the rate at rest compared to the obesity-enlarged heart and a stress test is going to show the athletes upper heart rate limits are much much higher.