Tax refund not yet approved for 2020

I efiled my Federal and MA State Tax returns on May 9, 2021. I got the State back with 5 days after filing but no the Feds as of my birthday June 2, 2021. It has since passed the 21 day deadline. I got this notification Refund Status Results Your tax return is still being processed. A refund date will be provided when available. Should I contact the IRS or wait until at least the end of June 2021