There are these weird drop like marks that started to appear on the back glass of my S23. Tried cleaning them but they don't seem to come off. I always keep my phone in cover yet they are there. What to do??

I updated my S23 with Galaxy AI. But now, I can't seem to find the option to hide the navigation gesture bar. Earlier this used to be optional setting if I waned to show a small bar at the bottom.

Is there any alternative for S Secure? Now it can't be installed after one UI 6. It was good as there was no need for a third party app.

Navigation bar gestures stop working sometimes.

Sometimes fingerprint and touch seem to be unresponsive.Also, picture quality and refining doesn't look as good as before.