Is it normal that

SELECT * FROM WMI_BIOS_INFO

returns no results?

That table has support for only a few different PC makers, and maybe yours isn't supported https://github.com/osquery/osquery/blob/e6fe15eb49660725e65dba1549932ed96e0a8c6e/osquery/tables/system/windows/wmi_bios_info.cpp#L30

Wierd.. Seems like it is supported