A little off topic, but I used to have a Wolf stove with a grill in it. (This was indoors) The advantage of having the grill inside as part of the kitchen is huge in my opinion. You have to have a big range hood, with a lot of pull but it’s worth it.
If you think about it, most restaurants have an indoor grill, and there’s no reason not to have one in your house. You just need to have sufficient ventilation.