why do some blackjack games let you see the next card coming

Noticed this at a few tables lately, mainly with some of the “automatic shuffler” setups and even a couple live dealer games online. You’ll catch a glimpse of the next card - like the dealer fumbles and flashes it for half a second, or you get an angle from the camera that sort of gives it away. Obviously, this changes the dynamic a lot. Makes you wonder how often people are actually using that info or if the casino just doesn’t care because the edge is so tiny.

Is this something anyone else has spotted? Do you actually change how you play when you catch the next card, or just ignore it and play standard?