The capacity of an individual cell doesn't really matter, because you can linearly scale up the energy capacity and power. If you can charge a single cell to 80% in 5 minutes, then you can do the same for many cells simultaneously, as long as your power source doesn't become the bottleneck. From the perspective of battery technology, what matters is energy density, power density, and of course manufacturing cost.

But for what it's worth, the linked presentation[1] includes some test results from 2.7Ah cells, which is about the same as the capacity of a common 16850 cylindrical cell.

[1]: https://www.enovix.com/wp-content/uploads/2022/06/Ashok-Lahi...