Another consideration is where you find yourself camping or even just spending the night. Out west {here in Arizona, New Mexico, Colorado etc.} half of the state is on fire or at risk for one breaking out on very short notice.
When we camped with our 22'TT I would stay hooked up and I do the same now that we are using our 24' class C, usually towing our 6 X 10' cargo trailer. I never stay hooked up to water or sewer but just use them as needed for a quick fill or dump.
Being able to flee in mere minutes should the winds shift or a new fire breaks out is a no brainer. Picture the chaos in a crowded campground when a wind shift puts everyone at risk from a fast approaching fire. :S We have had to literally turn around on a two lane highway due to a fast moving fire suddenly closing down our intended route more than once.
This pic was taken about 30 miles east of Zion in June of 2020. We were headed up to Jacob Lake when this fire over ran the highway not far in front of us:
Be safe out there folks...
:C