More research wouldn’t hurt but is not like there is none e.g., here’s video on seed oil that does cite some research https://youtu.be/XJ_uyV-ER_g

tl;dr seed oil is better than butter (saturated fat-wise), it is ok to heat it at home upto 200 Celsius, not ok “ultra processed” fastfood fries due to more heat, reheating (trans fat-wise)