Are you talking about the chibi models vs. more realistic models? I think that was an artifact of an FF trope left over from the NES era where the world sprites were limited to one tile due to NES hardware limitations while the battle sprites were more detailed 1x2 tiles, and this was kept all the way up to FF6 where they finally used the same sprite for world and battles.
I have no clue why they went back to using different/less detailed models for world exploration in FF7 (if I had to guess they were unfamiliar with the PSX hardware and the chibi models used fewer polygons), but that go a long way to explain why the FMVs sometimes used different models--IIRC, the FMVs with chibi models played directly from the field, and the ones with more detailed models had some kind of scene transition into them, or otherwise were used for major plot beats. It's good they abandoned this entirely with FF8 onwards, though.
Shit, there's roughly even odds that the records of her employment no longer exist because the franchise she worked at shut down, or destroyed them because they were 40 years old.
I used to work at a Sprint call center in the early '10s, but if you asked me to prove it I literally couldn't, because the staffing agency I was hired through, the call center, and Sprint itself no longer exist. Doesn't change that I worked there.