Hi Poco Fans|
People always confuse things with unlocking a bootloader and rooting a device.
If you don't want root access then you don't need to install Magisx on your device.
Unlock the bootloader - https://www.youtube.com/watch?v=vtI_oQKyQV8
Install TWRP and MAGISK - https://www.youtube.com/watch?v=zw-4n6ElwU4
Install Magisk only if you need root access
Things to remember:
At any point, you need to get back to the stock ROM and relock your device check this link - http://forum.poco.in/thread-445-1-0.html