How to position text so it will be in the same place for all screens?

This is rather simple, although a good question to ask for GUIs! As you can see, the coordinates of a GUI (in properties), is arranged in {x-scaled, x-pixels, y-scaled, y-pixels). When you drag and size it up in Studio without using the properties, ROBLOX automatically changes it with pixels. However, since those stay the same throughout all devices in measurement, the GUI is gonna look funky on most screens. However, what you can simple do is use the first and third coordinates, as those are for scales. They are sized by percentage of the screen, so it stays consistent throughout all devices. You can also use pixels to help even some things, but I recommend you to use very little pixels and use the scales. Hope this helps!