If you are serious about rooting an Android 11 device, the industry standard is . It is free and open-source, but it is a "one-click" app. The process generally requires: Unlocking your Bootloader: wipe all your data OnePlus Community Patching the Boot Image:
If you are looking to root a device on Android 11, the community-standard tool is Magisk . Unlike KingRoot, Magisk does not rely on security exploits. Instead, it requires you to unlock your bootloader and flash a patched boot image. kingroot android 11 free