SNO Installing Minim resource requirements is wrong.
https://docs.openshift.com/container-platform/4.17/installing/installing_sno/install-sno-preparing-to-install-sno.html
The blue box note states: "One vCPU equals one physical core". That statement is wrong. On systems with Hyperthreading available, two vCPUs equal one physical core.  

4.17     

    1. Change table one column "vCPU" to only "Compute"
    2. Change table one row "Minimum", 2nd column to "4 cores / 8 threads"
    3. In the Note box, remove all paragraphs about vCPU and threads, keep only the last point about "Adding operators".