The penalty exception for 10,000 Home is only from a IRA not a 401K.
A first time home purchase using a withdrawal from a 401(k) is not exempt from the 10% early withdrawal distribution. Only funds distributed from an IRA are eligible for the early withdrawal exemption for a first time home purchase.
Sorry---taking money out of a 401k to buy a home is not an exception to the early withdrawal penalty. That is only for a traditional IRA. The money you took from a 401k is subject to the 10% penalty and ordinary income tax. Make sure you have entered your 1099R on your tax return.
To enter your retirement income, Go to Federal> Wages and Income>Retirement Plans and Social Security>IRA 401 k) Pension Plan Withdrawals to enter your 1099R.
As mentioned above, new home purchase is not an exception for 401Ks, only IRs. Covid-related distributions are exempt from the penalty and you can see the other 401K exceptions here.