Here's a strange thing to hear about a game with a nine-figure budget: the people running the studio may not know everything that's in it. According to GamesRadar, Rockstar's own higher-ups don't have a full accounting of GTA 6's contents, because devs across the team keep adding their own flourishes during development.
If that sounds like chaos, it's actually the house style. Red Dead Redemption 2 was built the same way, and it's the reason Arthur Morgan's horse has the infamous testicle physics — someone on the team cared enough about that specific detail to implement it, and nobody above them stopped it. That's not a bug in the process. That's the process.
GTA 6 has been in the works long enough that this kind of bottom-up detail work has had years to accumulate. Expect the same density of unhinged specificity that made RDR2 such a time sink: shops with their own opening hours, NPCs with routines, and at least one system that exists purely because a developer thought it would be funny.
The tradeoff is that this approach makes a game genuinely difficult to scope. When anyone on a 1,000-person team can add a thing, the final build becomes something nobody can hold entirely in their head — including the executives signing the checks. GamesRadar's framing puts it bluntly: "unhinged detailing" is the expectation, not the exception.
For players, that's mostly good news. It means GTA 6 will likely reward the same compulsive wandering that kept people poking at Red Dead for years after the credits rolled.