I don't know. There are a lot of claims. There is science on both sides.

If you want to play it safe, use rules from evolutionary biology: whatever we used to eat can't be that bad. Oils from things like avocado, olive, and peanut must be okay at least when eaten in those foods. So simple beliefs like "double bonds cause inflammation" cant be right. Even fish oils have double bonds. Oils with double bonds are more liquid, flex more easily. Saturated fats are stiff. Your body needs to flex. Your cells need to flex. They need some polys. But chemically extracted seed oils are not part of our historical diet. It might be like eating stale rancid foods and not being able to taste that it is rancid because they chemically removed that flavor. If we can taste rancidity as bad, then it must actually be bad, or we wouldn't have evolved that taste sensation.

Anyhow, that's my take. Work it out for yourself.