M.2 2230 SSDs are hard to find

According to Gabe Newell's response to Reddit Steam members, it appears that the Valve Steam Deck features an M.2 NVMe 2230 slot, making an upgrade possible, but Valve says it is not intended for end-user replacement, even if you can find it.

Says Linux and other open platforms must be nurtured

Valve/Apple Meeting didn’t happen last week