yeah, Samsung is really good,
would you know that top lists on best smartphone camera on Dxomark are using Samsung sensors?
they say, it's always lonely at the top, so Samsung let other brands excel too, for healthy competition 😉
for camera tips, you may see below, or you may view some in Youtube
Your ISO setting determines the image sensor’s sensitivity to light. The higher the ISO, the brighter the photos. However, a higher ISO setting can cause unwanted noise and blocky pixels.
for errors or feedback on Camera, feel free to send those to developers via Members app → send feedback → apps
the developers would be happy to read your suggestions, experience and feedback is very important to them for improvement