This is true.
It's also true that less than 30% (in Europe as low as 15%) of smokers get lung cancer. [0]
I point this out b/c I always believed that "if you smoke, you will get lung cancer" whereas the data was "if you get lung cancer, odds are it's from smoking"
I wish that more information was presented this way but I also get that if your goal is to stop smoking then saying "smoking == lung cancer" is a better persuasion play than "odds are you won't get lung cancer if you smoke"
0 - https://www.canceraustralia.gov.au/resources/position-statem...