Nice design. Looks slick.
The circle animation with the play button looks nice... However, on mobile it takes a few seconds before the video starts playing, which got me thinking you needed to tap the play button... so I started tapping that "play button" like a mad man, killing my semi-boner in the process, because nothing happened.
Long story short - it wasn't clear to me at first that the animation is actually a loading animation rather then a "play button". Might be a bit confusing when the user has slow internet... Perhaps swap the play button with a hourglass icon?
Also for me (on a iPhone 10), when you navigate to any of the other pages using the menu at the button, when you later return to the front page, the videos don't get spawned anymore... Only after you refresh the page it goes back to normal. On desktop this works just fine. Weird bug...