I have grandma’s cast iron stuff and also new. Have to do a lot is seasoning and cooking to get the new ones seasoned but they will eventually.
My husband bought a small all-metal skillet for omellettes and it was a bit spendy. Everything he cooked in it stuck like crazy and he gave up on it. I told him he should return it.
He got online and wasn’t seasoning it right. Once he did the shiny metal turned dark and shiny and omelettes slide right out. I’m not sure what he did to season it but it involved fat and heat. It never gets washed other than water, wiped down and coated with coconut oil.
Same with my cast iron cookware.