Type 2 be used as a condenser under deep vacuum conditions, reboiler, gas cooler and heater.
Vapor in cross flow and cooling medium in spiral flow. This flow direction can achieve extremely low vapor side pressure drop. And large flow cross-section can accept large vapor volumes.
Also, short height of cross flow section is suitable in liquid to liquid duty with large flow imbalance. https://kurose-spiral.com/sh_advantage.htm