Only place I could imagine something is cooking and even there I probably would not be able to differentiate steak at 56C, 57C and 58C...
For sous vide, I will differentiate by 1 or 2 Fahrenheit degrees but I take your basic point.
It might make a difference for mashing when brewing beer but even that’s a crapshoot.
For sous vide, I will differentiate by 1 or 2 Fahrenheit degrees but I take your basic point.