How to record on 1920x1080 display [fix YT upload]

[troyan]

hi, i record video stream size 720x578 with only 1:1 + default on 1920x1080
on YT upload have bad see with 2 black strip up 2 black strip right left....

how to achieve full resolution on YT
which settings to choose the crop and aspect ratio on VLC?
how to achieve resolution in full screen when recording in vlc and the same resolution after upload to YT