While it is not a leading cause of death, Long Covid is in itself a killer, and disease.
As in this paragraph states:
"The tally is less than 1 percent of all deaths linked to the coronavirus, but it shows that it is possible to die from lingering symptoms after infection."
Long Covid Has Played Role in More Than 3,500 Deaths in U.S., C.D.C. Says
It was a matter of time before this story was reported.
https://www.statnews.com/2022/12/14/long-covid-death-certificate-records/