Great post I've tried it and it works.
The only problem I had is that you can't use the latest version of Magisk Manager you
need to use the 7.0.0 version if not Magisk manager won't open after running the suboot.sh script.
One of the weird things about the global Nokia 5.1 Plus ROM is that in many
countries it is not possible to enable or disable the notch the way
it is possible with the X5.
Well... until now :D
This was not found by me so I take no...