@french fries a ticket has been filed with the team and they are working on the jumpiness you reported. Thank you for pointing that out! We will use this thread to handle any specific discussion regarding it.
And IMO on this topic the broader issue is in general text changing size when hovered, so even in the thread title area where it's handled by abbreviating the title I find it jarring in general to have text change when hovered (here the word "food" is abbreviated when hovered):