I’m a 5 9 175 lb dude and my deficit is 2800 cals. I have a good bit of muscle, I workout 5 days a week, walk 10000 plus steps a day, and bike 2 or run 2 times a week. If I needed to eat under 2k I could because of protein dense meals. Beef, chicken, protein shakes. Veggies for carbs cause you can have a lot of volume without many cals