Submitted at my local Post Office in mid-March (I think the 13th)

Received an email on June 5th that says:Application Status: In Process

Due to the COVID-19 pandemic, we cannot provide an update on when you will receive your passport and the return of your citizenship documents until we resume normal operations and staff return to our agencies and centers.

While we continue to accept applications, process your payments, and safeguard your forms, we cannot update your passport status at this time. For more information, read our COVID-19 update.
With a link to the Safely Getting Back To Work For You page cited above.

Don’t have any foreign travel planned, but hope too some time late this year, early next year conditions permitting.