The topic’s name is pretty self-explanatory.
Even though there were topics like this in the past that had replies directly stating that this is not possible, Roblox found a way of doing that. As an example, here’s what the topbar looks like on high DPI settings:
(this is how it would look if it didn't account for DPI)
I have tried comparing the camera’s ViewportSize and the GUI’s AbsoluteSize; both of them returned the same exact values. I am very much stuck on this, so if you by any chance have any knowledge you can share on this, please do.