-- One friend e-filed her amended 2020 return in mid-April, 2021. Almost exactly a year later, in mid-April 2021, she received the refund she was due. Strangely, one week later she received a snail mail saying she would receive the refund in two to three weeks.
-- Another friend e-filed her amended 2020 return in late May, 2021. This past week she received a snail mail from the IRS saying she would receive payment in four to six weeks.