And how are you going to get that without falling into the trap of them being funny-looking humans?
The same logic applies as writing aliens in hard scifi. How are you going to 1) communicate their fundamental physiological/psychological differences from humans and 2) in a way that is fairly easy to roleplay?
See; Eberron's Elves. Their long lives impact the sort of cultures they build.
Likewise, in the world I'm building Goblinoids are even more social than humans, to the point where they tend not to think of themselves truly as individuals, and this impacts how they build cultures.
I used the same trope with my Alfar, but that is for a non-DnD project where the alfar are literally descended from land spirits like vaetr and dryads, and thus have a spiritual nature that is directly and unavoidably anti-individualistic.
If orcs are strong, emotive, and impulsive, you get cultures that take that into account.
While humans have individuals who are impulsive, or obsess over the loss of elders, or are anti-individualist, we aren't a race who all have to grapple with one of those traits.
I do think that part of the problem we have in storytelling is that we always treat humans as the default, for the benefit of the audience, all the way down to physical traits, rather than giving humans greater recovery from injury, and better endurance, or other things related to how we differ from other primates on a physical level. Pretty much nothing can outrun us over a very long distance, for instance.
We can pretty much walk anything else on earth to death without suffering any serious injury to ourselves. In my own games,
that isn't true of any other humanoids. Dwarves and Alfar simply cannot do that. An alfar running a marathon is a much greater accomplishment than a human doing so. At the same time, an alfar can naturally speak to spirits and animals, and a dwarf can sustain themselves on literally anything organic, even lichen, and can't be poisoned via ingestion.
Sure, but I don’t think we need to be tying it to race.
I get that, but I don't see anything wrong with something like being impulsive being something that is more prevalent in a given people.
Because it made me sad?
What we want is quite the opposite of homogenized races. We want diverse races. The idea that a race must be homogeneous to be meaningfully different than humans is, to be blunt, complete nonsense.
This.