How long can thawed raw steak stay at room temperature?
The steak, of course, was thawed in the refrigerator. The only time meat can be unrefrigerated is the short trip from grocery to home and the amount of time it takes to prep it for cooking.
How long it will last will depend upon how good it was when frozen and how it was thawed. If it was thawed at room temperature, it should be cooked immediately. If it wasn't fresh when frozen, it should be cooked immediately. If it was very fresh when frozen and was thawed in the fridge, then you should have at least a couple days to cook it.