Short Answer: Yes.
Long Answer: Still yes. Bike seats are just straight up uncomfortable. Even for short rides, you will feel the pain in your bum faster than you would expect. A chamois is by far the best way to prevent rumpus bruising. Do you want to sit at your desk job all day with a sore tushy? Yes, it looks feels like a diaper. Yes, it looks like you are trying to smuggle a sliced ham in your pants. But is any of that worse than waddling around and crying in front of strangers because you are literally butt hurt? I think not! Do yourself a favor, and get a chamois!