The doctor is an idiot to be like "oh your trouble breathing is probably just your lung cancer, don't worry about it." lmao. If they did a scan of his lungs as soon as he complained about his trouble breathing and saw the pneumonia, they could have given him antibiotics and he probably would have been fine.

To be fair, this technically likely was a covid death, since he probably just finished a bunch of chemo and had almost no white blood cells. Still, someone in that stage of post chemo is extremely susceptible to the flu.