If it's the same study s few weeks ago, then no, or rather, the study isn't about that - it's comparing ex-smokers who quit cigarretes for good vs ex-smokers who switched to vapes.

There, vapes have higher lung cancer risk than not smoking at all, according to the study. Which isn't really surprising.

In all, scientists found that those who had turned to vaping after quitting traditional cigarettes developed lung cancer at a rate about 56 percent higher than those who quit entirely. Alarmingly, incidents of lung cancer death among vape users nearly doubled, with a lung cancer-specific death rate 91 percent higher than non-vape users.

Of course, there’s an important group that falls outside the bounds of the study: anyone who got hooked on vaping without trying cigarettes first. It’d be fascinating to learn more about their fates, but the implication of the study — that vaping is turbocharging the chances of cancer among former smokers — is almost certainly cause for alarm.

the use of non-tobacco devices like vapes and e-cigarettes to help quit smoking carries a strong link with the development of lung cancer.

It's not the nicotine.

The only people who didn't believe this were those with stakes in tge game

For the people who need this proof, this won't change their mind. It's going to take getting lung cancer for even half of them believe vaping isn't harmless. Not long ago some idiot was telling me adamantly that nicotine, a known carcinogen, is harmless.