So I was looking into the 'moving around other creatures' section in the PHB and found this
You can move through a nonhostile creature's space. In contrast, you can move through a hostile creature's space only if the creature is at least two sizes larger or smaller than you. Remember that another creature's space is difficult terrain for you. Whether a creature is a friend or an enemy, you can't willingly end your move in its space.
Then I remembered Tasha's Cauldron of Everything (p. 170) has a interesting section on what happens when you would fall into a creature's space:
If a creature falls into the space of a second creature and neither of them is Tiny, the second creature must succeed on a DC 15 Dexterity saving throw or be impacted by the falling creature, and any damage resulting from the fall is divided evenly between them. The impacted creature is also knocked prone, unless it is two or more sizes larger than the falling creature.
At first it looks like this just happens if you fall and would land on someone, but because of the phrasing of being able to "move through a hostile creature's space only if the creature is at least two sizes larger or smaller than you", you would just stop 5 ft above the creature and just... take fall damage because the fall ended, with no effect on the one you fell on?
Doesn't really make sense to me if that's the case but falling onto a creatures are weird enough already with Wavejumping being a thing. Is there anything I'm missing here or can you only fall into the space of a creature that is 2 or more size categories smaller than you?