Hi, i want to change my csc of s23 ultra.. Currently its SM-S918B/DS version , i want to change into indian csc..is it safe to change? How to change it? Please help me

We kind request you guys to add applock,uts simpler than secure folder ..we need to lock oru apps..rest every phone has it but still samsung is in old age...Guys let the samsung know our need ..@samsung india