Hypothetically could an options file switch a user to a standard/basic concurrent license even though they are requesting an advanced license (as per packaged configuration for an organisation)?
My feeling is that whatever you have set in ArcGIS Administrator is what you get, and if the exact license level isn't there in the LM, then ArcMap won't load.
Context - trying to avoid separate software packages with only a single difference being the license config in ArcGIS Administration. Same for Citrix and containers.
Cheers