Nice little game!
I really like the idea of this, it feels very unique compared to many of the other games in this jam, which to me is a important thing.
I think there is a lot of room here for more object types and abilities they can give you while controlling them, like lighter objects also being pushed by fans or being able to move in different ways (only horizontally / vertically) due to the objects limits and structure.
Although, as I've found myself within games like this, designing puzzles can often be very difficult when you give the player a lot of freedom with the mechanics. Since the player can move basically every single element of the puzzle, it can allow for easy puzzle breaks and thus hard to make a puzzle that can only be solved in a certain way. While puzzle break aren't bad, and can often feel more rewarding, designed solutions are also crucial for getting players to get a "aha" moment.
I didn't realize at first that everything that I controlled had the same movement as the player, so I was trying to figure out how the get the box on top of the button, before I realized I could just jump on top of it. Some indication for this would be nice. I did like the use of having the controls directly in the level itself, but I think they could be more visually contrasting so they don't blend in too well.
The art itself is very clean, but I think it is a bit clashing it its themes. Things like the pipes and arrows don't fit as well with everything else. But it is super close to all being connecting and clean.
The movement is also a bit floaty, which doesn't seem like the type of movement you would have for a game like this. I think there could be some more improvements on that, making it a bit more snappy.
Overall nice game! Well done.