on 21-07-2022 19:56
on 21-07-2022 20:21
on 21-07-2022 20:21
It should be under https://www.samsung.com/sg/support/mobile-devices/how-to-set-up-sim-card-lock-on-samsung-mobile-devi...
It could also be under the Biometrics as well as you say.
I would reach out to Samsung support if both dont exist, they are available 24/7 via samsung.com