I'm glad you were able to submit! I think maybe reducing your base resolution would have been helpful, or as Noskire has mentioned below, perhaps zooming out a little bit (would effectively be the same thing). It would allow the camera to sit a little further away from the player so more of the screen can be seen. At the same time, the drag margin on the camera is massive, to the point if you get anywhere near an edge, you'd normally want the camera to start moving so you can kind of see where you're going, but it had remained still. I recommend for a first full game to just reduce your drag margin, or turn drag off entirely.
That said, I'm really glad you were able to submit! Very impressed you were able to, since this is your first in Godot and only second overall. I think you have some real skill, given that, functionally, it was a good way to the point of being a decent platformer! Keep it up!