whether accepted or rejected you should have gotten an e-mail. did you look in your trash bin? if not you may never have successfully transmitted your return
you can check the e-file status with Turbotax as follows
https://turbotax.intuit.com/tax-tools/efile-status-lookup/
however, even if it says accepted, I would check the IRS website
and see if there is a tax return transcript for 2020
https://sa.www4.irs.gov/secureaccess/ui/?TYPE=33554433&REALMOID=06-00008e4d-63f6-1187-a229-7c2b0ad00...
