Put simply smoke doesn't have to be hot. Smoke is just unburnt fuel caused by a process called offgassing (solid turning to a gas).
An example of cooled down smoke is a fire that starts in a well sealed room. It burns through as much fuel as possible, and while the solids are hot they turn into gas, however, due to a lack of oxygen, you don't necessarily see combustion. So then the fire snuffs itself out and what you are left with is a cooling smoke.
So let's say that the fire is on an upper floor. Heat goes up, cold goes down. So as smoke travels through a building it cools, and may eventually sink towards the ground or a lower level (this can be especially possible in a building as large as a cathedral) smoke sinks and interacts with bees at a "manageable temperature".
Best way to have active accounts is to avoid lurking. I've found myself falling into the trap where I act like I'm on reddit or YouTube and I don't want to give them free user engagement. The exact opposite of Lemmy.