@mcc @jplebreton I'm pretty sure that's not it actually; I also had autoplay off, for the same reasons, but have had the hover minefield issue for...I don't know time anymore. I'm pretty sure it's been months? And it hadn't occurred to me that there was an option to switch it off.

unless by autoplay you don't mean "pick a video at random from all of Youtube to play after the video you watched" and instead mean "allow video to start without an initial click." I do have the latter turned on