@applealcaffe Unfortunately, the short answer is: No!
You can choose the highest specced one upon purchase, but it cannot be upgraded by consumers themselves, as the memory is in the SoC itself and the “SSD” is soldered on NAND chips on the logic board.
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Edit: [link|https://www.ifixit.com/Guide/Macbook+Air+(M2+2022)+Logic+Board+and+Chip+Identification/151816|Here is a link to the layout and identification of chips on the logic board].
@applealcaffe Unfortunately, the short answer is: No!
You can choose the highest specced one upon purchase, but it cannot be upgraded by consumers themselves, as the memory is in the SoC itself and the “SSD” is soldered on NAND chips on the logic board.