If you remove the plugin from a document through google's interface (uncheck it), the plugin does not remove its permissions on said document. You can still run it on the doc until you completely uninstall the add-on from the account.
Basically, once you add the plugin to a doc, it is always there. No screenshots because my company cares about this, and had to forcibly remove it from the doc I was working on.
Easy to reproduce though:
Install add-on to account
In a google doc go to manage add-ons
add it to doc
format something as intended
go back to manage add-ons
uncheck it
No matter what you do from here it will always be able to run on this document until removed from the account entirely.
If you remove the plugin from a document through google's interface (uncheck it), the plugin does not remove its permissions on said document. You can still run it on the doc until you completely uninstall the add-on from the account.
Basically, once you add the plugin to a doc, it is always there. No screenshots because my company cares about this, and had to forcibly remove it from the doc I was working on.
Easy to reproduce though:
No matter what you do from here it will always be able to run on this document until removed from the account entirely.