Once you fill out the previous two sections on Step 1 Residency you will be required to list the amount of days you were physically present in the US during the relevant tax years.
You should enter the number of the days you were or expect to be present during the listed tax year under the listed immigration status.
When you are asked how many days you spent on X Visa in 202* you need to report such days that match your visit(s) reported in the previous section.