How Argus might have served before the First World War ended

If HMS Argus had entered service before the First World War ended, would she have been useful?

Yes. She probably would have joined HMS Furious in a carrier strike against a German naval base.

If Argus had entered service before the First World War ended, she probably would have joined Furious in a strike against a German naval base. That places the early flush-deck carrier in an offensive fleet-aviation role alongside the convoy exercises she later performed between the wars. The base name is unclear in the recording, so it remains unidentified. The broader operational conclusion does not depend on resolving that damaged place name.