I occasionally need to fill out an entry on a form asking whether I'm disabled and it leaves me somewhat at a loss to decide. (A bit like the final passage in Proust's Remembrance of Things Past, where he notices he has become old at some point, considerably earlier on.)
At the moment, anyone who remains concerned about covid (e.g., on the basis of age) is in *some* meaningful sense disabled, regardless of one's personal details.