Dude, I hate when I'm watching some esports on Twitch or NBA streams, and there's little to no indication that the stream hasn't frozen during breaks, because there could be just a text saying the match will resume shortly. Sometimes there are slight animations so it's actually apparent that nothing is frozen, but other times there aren't, or they're not intelligible from distance when i.e. watching from across the room. Not your typical use case for a progress bar, but still an example with room for improvement to show that progress is taking place.