In the Director's Office in the Preservation labs, there's some extra dialogue on the data tablet about Calyx unlocked from Shale's decryption efforts. Gives some neat insight on his character. Y'Shtola tells you about these unlocks too if you speak with her after the cutscene.
All of this is spoken from "Memory Duplication"
>It is well known that the Alexandrian royal family promulgated a number of fundamental principles governing Endless research.
>Among these was the strict prohibition on memory duplication.
>However, in the wake of the Storm Surge, the provisional government sought to revise this prohibition and make one key exception: Queen Sphene.
>The decision was ultimately made to equip her Endless counterpart with a tiara-variant regulator, thereby enabling the routine backup of her memories.
>Intriguingly, it was Master Calyx who objected most strenuously to this proposal.
>It was his assertion that one's corporeal form─whether flesh and blood or Endless construct─is nothing more than a vessel, and that as a vessel, it is to be modified and experimented upon should circumstances require it.
>Memory, however, was sacrosanct and inviolable. The very essence of life and personhood.
>When Master Calyx eventually acquiesced to the provisional government's request, a number of this facility's personnel duplicated their memories to verify the efficacy of the technology.
>Yet Master Calyx refused to even entertain the notion. To this day, he has avoided creating even a single backup of his own memories─a resolution which I myself have chosen to emulate.
There's also some extra stuff on the first data terminal when you enter the labs. The Protolab chief is/was Eosphor and the Deuterolab Chief is Redacted.