"Confirming I do not enter the W-2 partner received in addition to K-1?"

You stated this is the only shareholder. Is there a partner? Your shareholder is really shareholder-employee, but there are rules that treat the person differently than a regular employee, as well.

Are you aware of the changes for S Corp vs LLC? For instance, no guaranteed payments, no Unreimbursed Expense claims (UPE deductions) on the 1040, no Draws (distributions are pro rata to shareholders), no business use of personal vehicle on the 1040, any personal use of a company-owned vehicle is taxable through payroll, health insurance premiums paid by the corporation are run through payroll, etc. That's why you see details on the K-1.

And when your taxpayer has a W2, you enter it.