Reading the article, my understanding is that in "Range" and "Sport Plus" modes, the ride height is always at its lowest regardless of vehicle speed. Changing the driving mode to other modes, allow you to configure to raise the driving height by 20 mm if vehicle speed is below 30 km/h.
According to https://e-performance.io/en/article/taycan-chassis
Adaptive air suspension: always at the right level
The Taycan's three-chamber air suspension provides a wide range of spring rates. This allows the chassis to be adjusted to a low basic spring rate and therefore made more...
My dealer was telling that a Taycan 4 will be announced by end of year. Given how Panamera 4 versus 4S differs, I'm guessing the back motor in the Taycan 4 is even smaller than the one in Taycan 4S and will come with less standard options.