(i apologize for the sort of 'lore dump' below... I'm half asleep writing this lol)
In the original, and remake I wanted to make the HoS be able to change models to different animatronics,
(I.E You'd see Glamrock Freddy go behind a corner, and Roxy would walk out instead)
But with the way Night 6 ended up being, and the lower budget of act 2, it just wasn't really possible.

(I did still go with a similar idea though, The animatronics in Act 2 are intended to be the New X02 Endoskeletons I've written a couple lore notes about, so Monty was Swapped out for Roxy.)

Definitely thing there are some pretty interesting gameplay sequences you can do with something like this, so I may revisit it at some point.
(In the original, and remake, I wish I differentiated the HoS and Glamrock Freddy more, since they aren't the same animatronic, but I 100% get the confusion there)

The Original Night 6:
back on the dreams version, Night 6 was JUST the HoS, It later got an update adding in Map Bot and the Daycare Attendant.
The remake (Act 2) still has the same office as the dreams version, but i decided to make it free roam instead of a point and click section. Both for more difficult gameplay, and a sort of 'love letter' to Security Breach's office sections.