HDDs have been holding back what you can do in open worlds for a while. It (and the PS5 specifically having an extra emphasis on hardware decompression to amp it up further) was the thing I was most excited about for current gen consoles. There were a lot of rumors that PS4 Spider-Man had to cap web slinging speed to allow the HDD to keep up, and we’ll see what the movement options are in Starfield and how ships work (unless we know already and I haven’t seen it), but even the jet pack boost thing could seriously strain loads in denser areas if it allows enough movement to feel good in opener spaces.