Do I need to give my room card to the front desk when I check out?

Need. You need an ID card to register and collect a deposit when you check in. When you check out, you need to give your room card to the front desk to get the deposit back. Therefore, you need to give your room card to the front desk when you check out. Check-out means that you don't rent or temporarily live in this room and want to leave. Check-out is generally used when you don't need a house after staying in a hotel, or when you don't continue to rent a house.