The condo garden does not have collision on the walls, which can lead to falling out of bounds.
All sides of the pool wall do not have collision.
A tiny potion makes it easier but even player models that are a little smaller than default can easily clip through.
It seems like this bug may have been in the game for at least 5 years now.
Steps to Reproduce
Try to stand on the wall edges, you will fall through them.
Equip a small potion and strafe against the garden pool wall while looking down and holding forward, you will clip through the wall and fall through the floor.
What I expected to happen
The pool wall having collision that stops me from clipping out of bounds, and allowing me to stand on it.
What happened
I can’t stand on the wall, and I go through it when swimming against it.