It was sent first class mail Feb 17 2021
You should always mail certified with tracking as that is the only proof of receipt by the IRS.
Check the IRS refund site if you were getting a refund.
Check your refund stratus here:https://www.irs.gov/refunds
You should remove that picture. It has your personal info on it. Only the IRS can tell you if they actually got it and are processing it.