And also the BIOS update. As the OS is Windows this one is real easy - just run the provided EXE file. None of the fussing around that the EFI update requires.
I saw a similar output in device manager in the early stages of setup.
Not sure if I should have done the following, but haven’t felt any noticeable issues yet on Win10Pro.
I went to AMDs’ website, used their autodetect tool, after it ran I selected to only install the offered drivers.
Now, have only 1 unknown device.