This SSDT exists so that anyone who had a SSD installed in their ThinkPad T490 can disable it. I used it becasue I had a PM981 drive installed with another OS install which was causing some issues in macOS.
Compatibility with newer versions is not guaranteed. Tested upto macOS Monterey 13.1 using Opencore v0.8.8.
This SSDT disables the slot so any SSD installed in it will not work with this. The SSD still shows up in the Opencore picker so if you boot any other OS using Opencore, you can still use this SSDT as it only affects macOS.