How to Disable Samsung's "Smart Network Switch" to Avoid Too Much Data Usage
Galaxy S23's: How to Enable/Disable Switch to Better Wi-fi Networks - YouTube
Vodacom - Optimise the data usage on your Android device by disabling Smart Network Switch, from your device settings, this prevents automatic switching between Wi-Fi and mobile data usage. Like this tip?
Android 12's revamped Internet tile lets you switch between Wi-Fi or mobile networks anywhere