Hi. I am joining this thread, since I am gavjng exactly the same issue:
CHUWI Laptop freezes after a while of YouTube playback in chrome, started a couple of days ago.
Since I don’t know what Windows updates ran in the background, I will start playing around with chrome hardware acceleration. Maybe disabling this helps. The whole thing might be related to the video driver?
If I find out anything, I am going to share.