The individual updates all have their own switches, so you can test them one at a time if you need to, and these switches can be turned off again at the click of a button if you dislike them so testing is pretty safe—that said, if you'd like I can try to take some screenshots for you? (I use celeriac as my site theme and am on firefox currently but I don't mind toggling themes or switching to safari if that makes the demo closer to your experience)