Hey , so I have quite a small laptop in working on atm with guis , and if I make the size square in studio it doesn’t show square in game and they look slightly long and stretched compared to studio,
I just tested on mobile and they look pretty square though?
On studio it says the size was 60x60 and because of screen resolution will this make them not square??
Because without this my ui look trash lol
I’d suggest you to use instead of “Offset” in your GUI properties to use the “Scale” value. This will make your GUI fit to every device.
For more information, look into this post:
Install this plugin. Have a great day. 
(I have been using this for almost a month now and its surprisingly very useful!)
you can change to relativeYY, this makes the 2 axis rely on your vertical of the screen
maybe you try looking on this video:
