COIVD. I have COPD, I have lived with it for 20 plus years. I keep it under control and keep myself in shape to help combat it.
If I get COVID and it causes my COPD to act up and it kills me then COVID is the reason I died. On the DC both COVID and COPD would be listed, just like for every other cause of death.
All those flu deaths we have read about for as long as we have been alive are basically the same. Almost nobody dies of the Flu alone, it is almost always due to what other problems they had. Nobody ever whined about it till now