I have a Medion Akoya E4271 and it has an m.2 slot but the user manual does not indicate what type of SSD it supports (SATA III, PCIe, NVMe).
Can the program identify what type of SSD it supports? If so, in which section could I see it?
If the M.2 slot is not populated then it's most likely completely disabled by system. In such case it's not possible to detect any information about it.
But you might look in the SMBIOS DMI section if there's perhaps an entry for it, though this depends on mobo/BIOS vendor if they populated this information.