You would review how the Pub 15T has changed, to understand the change in terminology.

"The 2020 Form W-4 has been redesigned to reduce the form's complexity and to increase transparency and accuracy in the withholding system. Beginning with the 2020 Form W-4, employees will no longer be able to request adjustments to their withholding using withholding allowances. Instead, using the new Form W-4, employees will provide employers with amounts to increase or reduce taxes and amounts to increase or decrease the amount of wage income subject to income tax withholding.

The 2020 Form W-4 contains 5 steps. Every 2020 Form W-4 employers receive from an employee should show a completed Step 1 (name, address, social security number, and filing status) and a dated signature on Step 5. Employees will complete Steps 2, 3, and/or 4 only if relevant to their personal situations. Steps 2, 3, and 4 show adjustments that will affect withholding calculations."

Standard withholding, or W4 Step 2 Checkbox withholding. Two phrases.