Got my new t14 amd today. Note for everyone, the tiny ssd that came with it fits in the m. 2 slot meant for the cellular modem and boots just fine from
Need help with a T570 : adding a 2nd hard drive in the WWAN slot : r/thinkpad
How to upgrade M.2 Pcie Nvme SSD RAM Lenovo Thinkpad L580 disassembly - YouTube
Opening the Lenovo T470s, again - 2nd M.2 SSD possible? - YouTube
How to upgrade M.2 Pcie Nvme SSD RAM Lenovo Thinkpad L580 disassembly - YouTube