I have used the barbecue equipment you mentioned twice, but there are not many on the market. Because there is a little requirement for operation, there is a hole in the pot, so it is not easy to control the oil when baking. And the control is not good, and it is easy to stick to the pot.

However, it is still very common in Korean dramas.

You can find a franchisee "Korean barbecue".

Nowadays, "paper barbecue" is widely used.

However, I still miss the oldest kind of charcoal roasting and anthracite direct heating.