This thread is the 2nd thread I’ve seen questioning possible lung damage concerning Coronavirus.
People who fully recover from the coronavirus can be left with '20 to 30%' less lung function [TR]
That report is rubbish fear mongering. ALL serious respiratory illnesses leave the patient with diminished lung capacity for awhile.
The article you link, and the one at the top of this thread, would indicate that young people can get infected, and will usually not die, but could have permanent lung damage.
If this is so, it is definitely not like the normal flu viruses.