If you cook and use a proper Wok i.e. (Carbon Steel), mine are London Woks
and the patina has built up over use, just hot water and a light scrub
cleans it perfectly, dry it , lightly oil it up and back on the hob ready for another dish.
This is the correct way to maintain your Wok. I do the same for my Black Iron fry pan,
my Indian Karahis and even my Pressed steel original Brummy Balti pan.
This Youtuber does a good 101 on Wok maintenance