No, it is not safe to leave sous vide cooked meat at room temperature after it's done. Bacteria can grow rapidly at room temperature, even after sous vide cooking.
Sous vide cooking involves cooking food in a temperature-controlled water bath for an extended period. While this method effectively pasteurizes the food, it doesn't sterilize it. This means that some bacteria may still be present after cooking. The danger arises when the cooked meat is left at room temperature, which falls within the 'danger zone' (between 40°F and 140°F or 4°C and 60°C) where bacteria multiply rapidly. Even if the meat was properly pasteurized during the sous vide process, any surviving bacteria can quickly reach unsafe levels at room temperature, potentially leading to food poisoning. To ensure safety, you must either consume the meat immediately after cooking, rapidly chill it for later use, or keep it hot (above 140°F or 60°C) until serving. Rapid chilling involves quickly lowering the meat's temperature to prevent bacterial growth. This is typically done by placing the sealed bag in an ice bath.
Always chill sous vide cooked food in an ice bath immediately after cooking if you are not going to consume it right away. Aim to reduce the internal temperature to below 40°F (4°C) within a few hours to minimize bacterial growth.