The obesity deaths are comorbidity, which is… not to say that obesity killed them, but that it may have been a factor. E.g. obese 55 year olds that have a heart attack are in there, even though it is entirely possible for non-obese individuals to have heart attacks at young ages.

Guns… most of those are suicides, and that stat is uniquely American in terms of developed countries.

Opioids… also almost entirely self-inflicted (not willingly, but getting flattened by a bus is different than getting accidentally hooked)

Car stats also don’t count the incredible number of people who have lifelong or major injuries due to cars, which I would imagine is much higher. I feel pretty comfortable saying that a majority of people I know have been injured by cars, something that isn’t true for opioids or guns.