Starting with Android 10, the system partition is mounted as the root directory, making old exploit methods obsolete.
Real-world example: In late 2024, a fake "KingRoot APK" for Android 12 was found to upload build.prop and IMEI numbers to a remote server in China. Avoid at all costs. king root para android 12
You cannot use KingRoot or any "one-click" APK to root Android 12. Here is why: Starting with Android 10, the system partition is
fastboot reboot