No, this isn’t a cast iron thing. Using stainless pans, you can get nonstick effects that, in my experience, far outperform Teflon anyway. The process is called “spot seasoning.” I have cooked crispy, cheesy rice noodles with eggs with zero sticking.
I love my cast iron pans, but stainless is my daily go-to. Added bonus: use 100% copper wool to clean your stainless pan. The copper-coated wool at most grocery stores is problematic; you might get a few uses out of the coated garbage and then it starts shedding metal bits.
my seasoning flaked off and it became metallic appearance. I was struggling with obtaining stable seasoning, but found a reddit post that suggesting Blueing process. You heat-up your clean wok a lot with no-oil the iron reacts with oxygen to form magnetite Fe3O4 which holds seasoning much better. After you blue your wok, you season it by heating up some oil, but generally it seasons itself diring usage. If something starts sticking, more oil and more heat usually does the job.
When my cast iron started flaking, it was because I was being too gentle with it. Once I began to suspect that that was the case, I decided that from now on if this layer of seasoning isn’t strong enough to withstand my copper scrub pad, then it’s not worthy to be the foundation for the next later of seasoning. I’ve had much better results with this approach.