No, and FAs seemed to be of uncertain opinion if vaping was covered, although I only asked on one flight. Probably from a don't-be-rude perspective, it'd not be a good idea. Certainly the risk of fire isn't there.
There's still a fair amount of time dedicated to talking about "airplane mode". Which can simply not be a safety issue, as it'd be a trivial attack vector for malicious passengers to use. Or, if it is a safety factor, it just further illustrates the security theater.
