That comment from Lawrence Yang is specific to shohorning a 2242 into the Steam Deck by moving thermal pads designed to cool the charging IC out of the way
This Addlink is a 2230, the exact same dimensions of the OEM drives, so it fits as intended into the space, into the EMI sleeve, and requires no tampering.
At launch, there was a lot of FUD about "oh you have to use this specific drive because Valve's tested it for power draw and EMI". FYI, Valve themselves use at least half a dozen different models depending on availability. It's a generic M.2 NMVe slot and the only requirement is that it's single-sided and doesn't run too hot, because there's near zero cooling for it. Don't go putting something crazy-hot in there, but most 2230 SSDs are designed to run in ultrabooks and extremely compact laptops with limited airflow, so you do need to go out of your way to find one that's not compatible with the Steam Deck's enclosure.
Ebay, Amazon, and Aliexpress are loaded with used/refurbed 2230 SSDs designed for the Microsoft Surface from Samsung, Kioxia, WD, and others. All of them fit, all of them work, none of them draw too much power, and all of them are specifically manufactured to be as efficient and cool as possible by design. These aren't PCIe 5.0 monsters chasing performance and needing additional cooling, the 2230 form factor is for low-power, compact designs with no space for cooling.