Only actual study I have ever seen that even posits a reasonable way that vaping increases your risk of cancer is if you’re using shitty burnt out coils or overamping and basically inhaling atomized metals from the coil.

Basically its the equivalent of smoking a cigarette down to the filter.

It is not hard to keep your tank mostly full and swap out coils in a timely manner these days. Coil design, amount of electricity used and the juice itself have all changed to make it a lot more difficult for the burning up and inhaling your coil situation to happen.