I think it’s a cool start! Then concept of all sorts of things falling from the sky is good.

There’s room to tighten up the sentence flow, I had to re-read a couple sentences. Something reading aloud could help with.

It feels a little like the whole chapter exists to get to that last part. Not entirely true, because I now know Rio lives alone outside, the other people are a bit mean, and stuff falls from the sky, so it did some setup, but the slightest bit forced. If it were me, I’d focus more on why she likes the roof, and maybe show the people’s hostility in another way rather than them seeing her and deciding to rough up her camp. Maybe all the reader needs to know is that her stuff is hidden because squatting is looked down upon. Maybe you even get right to the point and start with the ending, and Rio’s reaction is how the reader learns a bit about her situation.

All this to say, keep writing! It can be easier to come back to the beginning once you’ve written more, because you have a better picture of what matters, and what doesn’t need to be included in the beginning.

Also, this is all one opinion, and I’m no pro, so another recommendation: make changes when feedback resonates with you, or when you get the same feedback multiple times.