i don't use it. as you have already described, it can oxidize when heated. this also happens under the skin when the sun shines on it, resulting in sunburn.
in addition, seed oil has undergone a lot of processing, which means it has to go through many procedures.
i prefer to use what is unprocessed and given to me by nature.

olive oil is okay, because you squeetch on the olive and immediately the oil comes out.
while for sunflower oil you need amount of seeds to get a little bit of oil.
however, most of the olive oil you can buy is blended with other residual oils.