The story is that the IRS says they will be sending out the refunds for the unemployment exclusion over the course of the summer. They only started at the end of May. They are not necessarily going in the order that the tax returns were filed, and a return filed as single could still have some complication that makes it take longer. There is no way to check the status of your refund or find out when you will get it. All you can do is wait. For more information see the following IRS announcements and FAQ.
IRS to recalculate taxes on unemployment benefits; refunds to start in May
IRS begins correcting tax returns for unemployment compensation income exclusion
IRS sending more than 2.8 million refunds to those who already paid taxes on 2020 unemployment compe...
2020 Unemployment Compensation Exclusion FAQs
