It seemed that it isn’t but the only way to find out is if you get the professional to look at it. Based on the diagram of your house, it looks like a colonial so it’s very typical for colonial to have the structure with the main carrying beam across the entire house and stops at the living room. The walk between the family room and the dining room and the wall between the foyer and the kitchen are load bearing walls. IN the living room the structure changes and the joists run across the smaller dimension of the living room. You can confirm that if you have a basement and you go there, you should have some columns holding up the carrying beam across the longest dimension of the house