if i am totally stock right now, not even unlocked bootloader:
unlock bootloader
boot/flash TWRP
Flash full zip
or
unlock bootloader
Boot/Flash TWRP
Install Magisk/Root
Install Magisk Module
If i have understood right, i will have the same result, right? This rom really made me to take the next step and start testing custom things
Any of those steps will give you the same result
But if you use magisk module make sure to disable it once op gets an official update until we update to the new base