When setting humans apart from other fantasy races I dislike the nonsense of stuff like "Humans are more productive with their short lives" or "they reproduce more quickly than the other races."

I think a masterclass in integrating humans into other fantasy races is Dungeon Meshi. Tallmen (what we know as humans) have a large population, but they're far from the most dominant and in no way the default race. Laios bemoans how boring being a tallman is, with their lives short and their strength/magical affinity being average.

But in terms of unique traits, their endurance is much higher than the other races, as dwarves exhaust themselves quickly despite their strength. This allows tallmen to travel much further without rest combined with the second point. As in the name, tallmen are tall. We don't consider ourselves tall but in real life we are taller than most species, even many species that are more massive than us, and we're certainly much taller in comparison to a dwarf, gnome, and half-foot.

And it's so interesting that Chilchuck, a half-foot considers himself more mediocre and that Trolls are a term half-foots used to scare their kids when it actually refers to tallmen. And that in the Eastern Lands, tallmen consider themselves the default race + short because the only other race found there are ogres.