I think there’s several criteria:

• power of a vape pod
• temperature isolation of a window
• temperature difference between two sides of a window
• humidity in a closed space
• proper ventilation

So… In a car - yes, absolutely. Especially when it’s winter. But it’s also true that I’m working from home, spending most of the day near PC, vaping all this time right in front of the window - and I never had any haze on it in a 4 years. So I really agree that hotels shouldn’t handle it the same way as regular in-door smoking