
The official comment from Apple is that this weakness in the Air’s SSD is compensated by the strength of the other components around it: While this doesn’t carry over to the models with higher levels of storage, for the regular consumer who’s just going to ‘get a laptop, one of those Apple ones’, Tim Cook and his team are offering a slower macOS laptop.

With only a single chip compared to the dual chips of the previous model, the throughput of data to the M2’s SSD is half that of the M1 Air. While the entry-level with 256 GB storage offers the same space as the M1 MacBook Air’s 256 GB model, Apple has consolidated the storage into a single NAND chipset on the M2 Air, compared to twin 128 GB NAND chipsets in the M1 Air. The CPU is not the only area where Apple has apparently skimped on specifications. What is surprising is that Apple has put itself in the situation where the new machine - a machine that may be focused on the consumer but is advertised as having the power to do what you need it to do - has less potential for hard work than its predecessor. Unfortunately, the M2 MacBook Air suffers from the same problem - perhaps not surprising given it is running the same M2 chipset.
