In the full version of android 16, a new security section called "mobile network security" exists. This currently doesn't exist on the one ui 8 beta.
This adds "network notifications" where the device will alert the user when the device connects to an unencrypted mobile network or the network obtains the device's unique identifier.
The other option is "allow only encrypted networks". This blocks the phone from connecting to unencrypted cell towers.
I know this might be hardware dependant but the s25 series is using the latest chips, hopefully it can support these features in the full release of one ui 8.