Permanent damage at this point is unlikely unless he has a stroke (I'll get into that later).
Lungs-wise, when people mention permanent damage, they're talking about fibrosis, scar tissue, you would have to be on a ventilator coughing up the pink foam before fibrosis become a concern, and pulmonary fibrosis often fatal in the long term.
Regular, temporary damage from corona heals in 1 or more months, or 2 weeks at the fastest, everyone gets it, even when asymptomatic, it shows in scans.
The Regeneron treatment basically changed the course of his infection from what you'd see in other people. The REGN-COV2 trial results so far say his infection (with 8g dose) will be at best 1% or at worst 50% of what it normally would have been (specifically I'm talking viral load), and that's before the Remdesivir or anything else he took.
Since then, his biggest risk has been a stroke from his terrible cholesterol combined with cardiovascular stress, it can be prevented with close monitoring and anticoagulants, but not fixed after it happens.
She asked again (I think) so she could get a sound bite of Trump having lung damage. That's usually what doctors mean by typical findings after corona, everyone gets lung damage that heals, even if you don't have symptoms, you'll still be coofing for weeks, at least if you breath deeply. It's easy to confuse people into thinking lesions and fibrosis are the same thing if that's your goal.