You do not get the third stimulus check through Turbotax. Rather, the IRS sends them out automatically (and separately), based on your most recent tax filing. It has just started to do so, and it will take a few weeks to complete the process. (I'm not sure why folks believe that all these payments are being issued this week.) Per the IRS:
Payment Status Not Available: We haven't yet processed your payment or you're not eligible for a payment.
Get My Payment | Internal Revenue Service (irs.gov)
