Unpopular opinion: Adventurer, Gravy, and Bodyguard, are not good goose roles.
I think every goose role should help the geese in some way. Like a Mimic’s existence confusing the Ducks, to the game changer that will be the theoretical Survivalist for example.
The adventurer does not benefit the geese but with only the “benefit” of not dying to a sabo. Here’s the catch, you only help yourself. Why not have the edition of sacrificing yourself to grant one-time immunity to a minimum of one, two, or a balanced number of other players in your range, when you go in the range of the environmental, sabo? It does encourage grouping in some capacity, but gravy is a negative type of grouping that I'll come to in a bit. This ability would be beneficial because you can save a small number of geese.
The gravy only benefits the team with money, money, and just money. Yes, you can occasionally screw over an oblivious duo of ducks, but that's it. Your role is easily fakable and eventually, with this role on more often, killers will learn not to go near you unless they can double-kill you with the player next to you. Honesty, it's best for this role to not exist, and to not encourage grouping that almost only benefits the role.
The Bodyguard encourages grouping, which is fine to have in this case because you sacrifice yourself for a goose role that helps the team. But you can be forced to vouch for a scummy neutral and you are almost always in a panic to find your target only to find out the passing of your target because your opp found them first. Why not have the ability to protect whoever, it would benefit to have the ability to protect one player with a visual indication that you are protecting a player when next to another as well.
After all of this, I have concluded that if this was validated: Get rid of current Gravy and current Hitman, make Bodyguard its own role with tweaks, and make Adventurer replace the Bodyguard on the Killsabo maps.