S23u camera noise in dark areas , slightly pixilated

[Bryan2424]

My s23u has overheating, battery draining quicker than usual from the past week and WiFi issues planning to send in for servicing. Wondering if the images(cropped) shown below is normal for s23u (noise in dark areas and pixilated in normal daylight) replacing the camera , battery etc at one shot 

Thanks🙏 

S23u

Iphone

Iphone

S23u

[bqgc]

my lower veraion.sincw arartws s20 to.s21 has more.trouble