Should is not an answer.

Correct, as the employer it is not my position to judge how an employee fills out their W4. 

I don't recall in all my post giving that impression.  Just want to know how to accurately enter 2020 W4 information into quickbooks.

I am not confident that the moderators on this message board now the answer and it's why no one can confirm and are just reciting what's on the IRS.gov website.  The information giving at irs.gov has nothing to do with the quickbooks software.