Avowed has a bunch of references hidden away in its achievement names, with many named after previous Obsidian games. From The Outer Worlds to Star Wars: Knights of the Old Republic 2, Obsidian has included nods to so much of its previous work, with a lot of deep cuts hidden away in there.
However, and perhaps to little surprise, there are quite a few Fallout references in there too. This includes the game it developed, Fallout: New Vegas, but also a nod to Bethesda's Fallout 4, although some of them might not be super obvious at first.
First up, Fallout. The first one on the list comes from Fallout 4, with a secret achievement called Everyone Disliked That. This pops up in Fallout 4 if you manage to upset multiple companions, and a screenshot of the message quickly became a running gag online.
Then, we have multiple New Vegas references. Two of them allude to songs that play on the radio, Jingle, Jangle, Jingle and Big Iron On Your Hip. The other is a bit more niche: Two Bears High-Fiving. This is a reference to the test you complete at the beginning of the game, where you're shown a series...