Full screen auto update resolution

I want to make a game that fits different screen resolution no matter if its phone’s 800x600 or it’s 4K monitor

Check this project:
https://drive.google.com/file/d/1yX7zVeBmUJ6zHQfNgDTtF9qm69k-2bKD/view?usp=sharing
You can go with cat left and right but not too for, beacuse it falls
The idea is to vertically keep items in the same position as I put them in the scene and items should keep size ratio to the screen

I belive there is better solution but I can’t find any working