Which best practice for using gedit as root? [duplicate]

gksudo seeming to be somehow depreciated since 2017 as I see on the french forum documentation, is there an environment and version agnostic best practice allowing to use gedit as root?

(excluding vim, nano or tee: the use case being a GUI amendment of sources.list for instance)

My researchs brought me these proposals, are they equivalent or to be rejected :

• pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY gedit

• gedit admin:///path/to/document

• sudo -i gedit

• sudo -H gedit

Any other ?