How to resize Youtube player in Chrome?

Question

YouTube

How can I change the size of the youtube player? After clearing the cache, the size of the player in the browser became very small and centered. As a result, most of the screen is not occupied by anything. Prior to this, the video list was located on the far right side of the window, and the remaining width was occupied by the player window.
(It was about how it looks in game mode).
Switching to widescreen mode does not suit - because. while the list of videos goes down.