Question about calories in and calories out

So I’m trying to lose belly fat, so I’ve started a calorie deficit which my total calories for the day is 2000kcal which consists of high protein ( around 170g ). Naturally I’m eating 400-500kcal less than what I need to maintain my current weight which is what you want but I workout 5 days a week ( around 1.5-2 hours of weightlifting exercises ) and I also do some cardio a couple of times a week ( 5km twice a week and play soccer on a Sunday ). I also do uber eats on a bicycle 5 days a week for roughly 3 hours at a time. Now, my calorie intake is already 400-500 less without including any exercise. Now my rough estimate is that on days where I work out and also do cardio and deliveries I must be burning around 600-800 calories if not more thus my total calories in for the day is around 1300~ ( 2000kcal - ~700kcal of calories burned through exercise ). I guess my question is. Should my starting calorie intake be higher than 2000kcal because I’m burning let’s say 700kcal on top of the 500kcal that I’ve eliminated from my diet at the start.