If you smoked, you are MTL, at least to start. Direct-to-lung inhaling (straight to the lungs, like breathing through a straw) belongs to cloud-focused setups with airy coils and low nicotine. Almost everyone switching from cigarettes should begin with the tight draw and revisit the question a year later, if ever.
Anything from about 0.8 ohm upward, run at modest wattage. That resistance range restricts airflow naturally and pairs with 50/50 and salt liquids. Most kits in this category handle it automatically, so the number only matters when you buy replacement coils.
Deliberately, yes. Discreet vapour is a feature: it is why MTL devices work in situations where a cloud machine would clear the room, and why their liquid and battery last so much longer. Satisfaction comes from the nicotine delivery, not the cloud size.