Yes, the IRS just recently started processing paper tax returns. But they have less than normal staff and a huge backlog, so it is going very slowly. The IRS web site says the following.
"We're experiencing delays in processing paper tax returns due to limited staffing. If you already filed a paper return, we will process it in the order we received it.
"Do not file a second tax return or contact the IRS about the status of your return."