Why IPhone 11 front camera is grainy in indoor lighting condition . It is capturing Worse images than a $200 Redmi phone. This is my first iPhone. Help me By telling is that happens with you also

It happens with Enough lights Also, but grains comes In edges especially. Is it Normal But is not like they advertised but I am worried because other phone capture better than this

But does it happens to you grainy images, I clicked this image with front camera see the amount of grainy. I am worried is my phone is Defective or Not

In Indoor lighting only ( it is grainy )