[v4.0beta17] [Win 11] Gray border setting WINDOW_MODE_FULLSCREEN via code

[rafma0]

Godot version

v4.0.beta17

System information

Windows 11

Issue description

Setting the window mode to WINDOW_MODE_FULLSCREEN via code adds a gray border around the screen

2023-02-04.17-31-56.mp4

I think it won't be visible correctly in this video if watched from a browser (if it's not, please download and open it in VLC). There's a 1-pixel border around the screen that appears only if you set the window mode to WINDOW_MODE_FULLSCREEN via code. This issue doesn't occur if the project window mode is set to Fullscreen and you haven't set anything via code, or if you've set it to WINDOW_MODE_EXCLUSIVE_FULLSCREEN.

Steps to reproduce

DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_FULLSCREEN)

Minimal reproduction project

N/A

[kleonc]

Duplicate of #63500.