Yes you can put raw meat in an air fryer and the air fryer will do all the cooking.
That is the point of an air fryer is that the air fryer cooks the food including the meat and the air fryer will cook the meat using convection heat.
There's no need to partially cook the meat or any other food before putting it in the air fryer.
Just put the raw meat into the air fryer and turn it on and let the air fryer do all the cooking which is what I do myself.
You can also put frozen meat into the air fryer and it will cook just as good but it can take longer for the air fryer too cook the frozen meat so it's best to thaw the frozen meat first.
But if you need to put the frozen meat into the air fryer you can do so but just allow longer cooking time.
The way that air fryers cook food without use of cooking oil is through convection.
The air fryer cooks the food by circulating hot air around the food at a high speed which cooks the food.
The air fryer has a fan that circulates the hot air from heating elements that get hot like a space heater does and that heat then cooks the food.
It creates a crisp food like deep frying does but without the food needing to be soaked in cooking oil to cook.
The air fryer uses around 1,500 watts of electricity to create that heat as well.
Basically inside the air fryer it's like an electric space heater that cooks the food.
You can also use some cooking oil spread onto the foods to help them cook better but you can just put the food in the air fryer without the cooking oil.