Im 27, 174cm. Been 55kg for 15 years+. Very slim body build coz not enuf food.
Just finished university and now can focus on my physique building before working.

So ive started tracking my calories using app, the target was 0.5kg/week. Because ive been slim all my life i dont believe that i can get fat. ive been bulking doing my calories excess was aout 500-1000 kcal daily.
That was though but i manage to gain 10 kg in 1.5-2 months. The problem was that I didnt do any exercise during that 1 month bulk. Now I looked very boroi demm (waist from 28 to 33) and i would say now i fall in the slim fat guy group. My fat percentage is 19% and my visceral fat is at level 9 (from xiaomi weightscale)

Ive been doing stronglifts 5x5 religiously for 1.5 months now + 2 scoop protien daily. Very happy with muscle growth but have not seen any changes with my belly fat. Ive even tried to do calories deficit but still not much changes. I havent tried cardio though.

My goal is to build more muscle at loose belly fat
Now im very2 confused about my diet and workout regiment. Should i stay on maintanence or deficit? should do cardio? should i add exercise to my stronglifts routine? help plz