Ratchet & Clank is the only demo with new gameplay based on the SSD.

But it's overused, giving each game world less weight. The technological imperative, preoccupied with whether they could, etc. In contrast, artificial constraints add depth to gameplay, e.g. limited movement speed/duration ("sprint").

All that said, keeping processors fed with data is a central problem of CS. The innovations here are not just the SSD itself, but elimination of bottlenecks in the architecture (e.g. direct placement in GPU RAM).

Typically, storage is 1000x slower than RAM. On PS5, it's 50x. That has got to be a revolution in algorithmic space-time tradeoffs... which has got to be reflected in gameplay, somehow, somewhen.