Starfield Juno's Gambit Mission: Save Or Destroy Juno
The decision about choosing Ryujin Operatives or Juno comes as part of the main mission in Starfield which is Juno’s Gambit.
Starfield Juno Ryujin Industries Faction Ryujin Industries Ryujin Operatives Juno Gambit Mysterious Ship
Source: segmentnext.com