I actually have an avo tree taller than me that I started this way 10 or so years ago. It is in a pot, and our climate is a bit cold for them, so I move it into the house in winter.
These are normally outside, just hiding from the worst of the winter.
That tree definitely needs water! Their leaves aren’t supposed to be limp. You should be able to easily tell if it needs water by feeling the weight of the pot.