Question

Would you expect all the devices listed in bios setup to also be listed in device manager? would you expect all devices listed in device manager to also be listed in bios setup?

Answer 1

Would you expect all the devices listed in bios setup to also be listed in device manager? = Yes
Would you expect all devices listed in device manager to also be listed in bios setup? = No, the BIOS doesn't know anything about your peripherals etc. that is all managed by the OS.