a quick search here or any RV forum, will show you that this is a topic constantly discussed.
you would have hours of reading.
bottom line, based on posts i've read over the past 11 years, the large majority of RV owners travel with the propane ON. we have for years.
some choose to turn it off while fueling but that's a personal choice.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC