@leocg i figured out the reason why, and it was because i was logged in on youtube? i dont know why but whenever im logged in the video is zoomed in.

whenever i go to watch a youtube video, only the video is very zoomed in and the video is just weird overall. i use 90% zoom. i've checked my resolution rate, and it didnt fix anything. ive also checked on other browsers and google was working fine. i also have checked on incognito on opera, but it works fine as well., so i dont know what the problem is. i dont have any extensions either.
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