We used to have the problem of smoke, etc, escaping in to the room. We changed how and when we opened the door, and how we loaded it up.
Now we use the top down method to start a fire, it produces less smoke.
We use just kindling to start, which is best for my burner.
And we leave the air controls open for all of the first burn of the day.
When the first load is down to embers -btw, embers don’t smoke- we leave the air controls open.
Get the next logs ready.
Open the door slowly.
Then load up again quickly, but without just chucking the logs in.
We leave the air controls open until the new load is burning nice then shut them as needed.
On the next load we do the same routine.
Now we only ever get smoke escaping in to the room if we have to open the door during the first part of a fresh load of logs, such as if the logs fall incorrectly and touch the glass.