That's the official Magisk thread: https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445Thanks! Yes I do not have Magisk installed. Could you please add the link to it here?
Magisk gives you root access to your device and the possibility to flash zips like the one provided in this thread (Magisk “Modules”), while passing SafetyNet (so you can use some apps like Pokémon GO or download Netflix from the Play Store). The Magisk zip provided in the thread linked above must be flashed in a custom recovery like TWRP.
I hope you already have a custom recovery, or at least an unlocked bootloader, because unlocking the bootloader now would erase all the data on the device.
But even when you haven’t done that yet, I’d say it’s worth it in the future, because then you can do full backups of your device, flash zips like Magisk and even flash custom ROMs (for a current Android OS when your OnePlus device isn't officially supported anymore or you just want some more features).
Sent from my OnePlus 5 using XDA Labs