depends what u mean by "walk around"
fighters have like 6 different "weights"
Max weight: eat whatever they want and then some, rarely use the gym, or not at all
Early training weight: eat normally without thinking about it too much, but using the gym
Training weight: training and eating healthy (this is what they call "walk around" for most
Pre Weight cut weight: This is their weight before cutting water. low cal, low carb, high water, high salt.
Weight cut weight: 155,170,185.. they weight they get at scale. no food, water management, etc
In cage weight: After cutting and eating, night of the fight when they step in the cage.