Resolution Issue

I know I have made another report under the same name, but it is a different issue.

When I open Minecraft Java Edition on any version past 1.12.2, the resolution is messed up in a way the set resolution is higher than that of the window size, causing all text and GUI to be a lot smaller and, while still playable, can be very annoying since all of the text is super small.

When I used the F3 Menu to see the display, it said 1708x960 when the window size itself was 854x480 (Which is what I set it to in the Minecraft Launcher).

But when I went back to 1.12.2, I entered the F3 Menu and the resolution said 854x960 which is also what the window size was.

SIDENOTE: When I entered full screen (Which I couldn't capture because of the area I was recording) the resolution in 1.13 was 2048x1152 (which is the setting I put it at in the settings) and when I set it to 2560x1440, the text becomes tiny again like the previous issue. I went to 1.12.2 and the Display said 2560x1440 and everything was good, not super tiny text.

I don't know why the Launcher isn't able to communicate the resolution (Not just the window size) to Minecraft Java Edition and I would like to have an explanation.

Video: https://youtu.be/VvJefN-JifE

UPDATE (8/19/18): I set the resolution in the launcher to 1708x960 and the text was very small still, I opened the F3 Menu and the Display said 3416x1920? I would like an explanation for why this is happening.