Say what you will about Square, but they're one of the very few devs out there that are really bothering to take advantage of the SSD and I/O hardware in the new consoles. FFVII Remake went from lengthy loading times on PS4 to pretty much instantaneous on PS5 (1-2 seconds). The same for Forspoken, which technically leaves a lot to be desired but its loading times are just a brief fade to black screen and you're already playing, if you blink you missed it.
Obviously that requires to rewrite your code for the new hardware instead of doing things "the old way", and very few devs are doing it, so good for Square. I'm sure they're taking advantage of the I/O hardware again in this game.
And apparently they're using the super fast SDD and the hardware built around it for more than just loading times, like streaming in and out of memory super detailed models so we can always see the best fidelity no matter how close the camera is. Even on last gen machines it was possible to render amazing quality characters and that stuff (like FFVII R, for instance), but the hardware couldn't stream them in and out of memory fast enough, so if the console didn't have all the possible LODs already stored in RAM (which is a huge waste of resources, because you may need them or you may may not) in case the camera got close to an object /character it was already too late to load a better LOD from the HDD. Cool stuff.