IIRC, If there was a specific operational or TERPS reason for an expanded GS service volume, expanded GS service volume (>10nm) would be indicated as a Chart Note and/or depicted as part of the procedure in the profile view. Another clue would be the distance of the FAF to the Threshold and associated published GS intercept altitude (the lightning bolt symbol). Flight Check would have to document this “SAT” on the Flight Inspection report as part of the procedure package documentation.