Many oils get a bad rap, some deserved, some not. Seed oils for one, along with high saturated fat oils. Just because you hear it said, doesn't mean it's true. "Olive oil is good for you" as an example. Better than many, probably, healthier than all seeds, questionable, and the 'science' doesn't agree.
I've returned to using Canola oil again, for some frying. Depends what I'm cooking. Add butter to most times, for flavor, as too lazy to make Ghee. Use peanut oil for deep frying, (low temp & change frequently) though will probably change to Canola when that runs out. Use EVOO, but sparingly. Only use Coconut oil to make my chocolate.
Seed oil is a problems, as added to processed foods, especially if the 'hydrogenated' version. Simple solution, don't eat that crap. Some of the uncommon common sense most people don't have.
Use Beef & Pork Tallow for cooking same meats, depending on the preparation, and sometimes no oils, using the fat in the meat itself. If lean, then will need tallow, or Canola & butter for Chicken breast, if frying.
Don't fear saturated fats, but use sparingly. Get plenty for animal fats, in my diet, along with Omega 3, to counter excess O-6.
This is why I'm moving away from high saturated fat oils (@ 11:40) ...
This vid specifically testing liver health with Canola. Also mentioned in vid is Olive oil, with same results. Canola being better on the liver and cholesterol.
Types of fat in your oils ...