Frankly, a decent archer can alter the trajectory of a shot as needed. I suspect that's where the term "Archer" comes from.
So it would be nice if the trajectory in-game reflected the intended path the archer is trying to shoot to get to a proposed target.
Hmm... maybe that's what's going on here. Maybe a gnat has gotten between him and his target and he has to arch it over...
Sure, a decent archer
can alter the trajectory of a shot. But no matter how good the archer is, creating an arch where the arrow travels 3 feet up then back down during a horizontal distance of 10 feet
requires that the arrow has a pitiful velocity. My math says ~5 m/s (11 mph), whereas typical arrows travel at ~70+ m/s. For reference, baseball pitchers throw balls at 45 m/s, so an archer in this example is effectively tossing an arrow at ~1/10 the speed of a major league baseball.
The only way an archer can get such a curve
and have enough velocity to pierce a target is if they used magic to ignore physics (arcane archer ability?). Or they're on a planet with like 10x earth gravity.
In order for an arrow to be an effective piercing weapon, its flight should only have an appreciable drop (1+ foot) if the target is ~60+ feet away. There's a reason why 5e bows have normal ranges of 80+ feet; closer than that, the arrow doesn't drop enough to miss your target.
