> I believe X13 Gen 2 has soldered WiFi, not M.2.
According to the hardware maintenance manual: "Wireless LAN card (for selected AMD models)" [1]
I can confirm from the internal photos I have of my X13 AMD Gen 2 (I swapped the stock SSD for a SK Hynix P31 Gold 1TB) that the WiFi is indeed M.2 socketed.
[1] https://download.lenovo.com/pccbbs/mobiles_pdf/t14s_gen2_x13...