They just started opening the mail in June that's been stacking up. So you have to keep waiting.
See this IRS page for the latest information
https://www.irs.gov/newsroom/irs-operations-during-covid-19-mission-critical-functions-continue
Is it showing up at IRS Where's my refund yet?
https://www.irs.gov/refunds/
you can't until the IRS enters it for processing