The new 2022 Apple MacBook Pro 13 with M2 SoC has been found to feature a slower SSD than its much older M1 counterpart, depending on the amount of storage in the configuration. In the worst-case scenario, the M2 MacBook Pro's SSD was found to offer barely half the read speed of the storage found in the equivalent 2020 MacBook Pro with M1 chip.https://www.notebookcheck.net/M2-MacBook-Pro-13-with-256-GB-storage-has-a-33-50-slower-SSD-than-its-M1-equivalent.631793.0.html
I remember reading something very similar about an Intel-based MacBook Air 13 a couple of years ago. Most customers do not seem to care.
The strange thing is that write is faster than read. That is not what you expect to see. Who knows, perhaps there is a bug somewhere.