Different tools for different jobs. There's a ton more variables at play. Oversimplifying does just that.

Play with it all. Try to do both. Then you will have a better idea. Or post on lemmy asking everybody and read a lot of incomplete and possibly misleading explanations that might help you find the detail(s) you lack to edge your mind into a wider hunger for deeper understanding.

Mine? Cast iron is just different. Like using a truck vs using a car.

In real life, nothing is clear. So, when people give you clear explanations, they may be making the decision to not invest a lot of energy trying to get you to understand or know more. Like right now, I know that spectrum people take a lot of explaining sometimes, and I am really tired and going to bed, so my best advice is to understand they're different. Learn by doing if you can, and learn from others if you can. But, if it means anything, I use two cast iron skillets, three types of stainless steel pans, some of them tri-ply, and an aluminum with a nonstick coating. I have my preferences not just for different things, but styles of certain things, and even times for different things (like just cooking for me, or one other person, or multiple other people).

Also, generally with non-stick, using high heat or metal utensils on it will ruin it and expose you to pretty bad chemicals basically immediately. But also so does any smoke in general.

Literally pick your poison.