Perhaps ill-advisedly, I tried travelling with the Element Hub. It comes unstuck because of the shortness of the TB cable and the massiveness of the power brick, but that’s not the hub’s fault. Still, I live in hope that it will be possible to travel with a hub like that, some day.
I dunno how I feel about the Airs though. They’re lovely machines, but I’m now on my M3 Pro and loving it. More storage, more RAM, three ports. It’s clear that this is where I’m supposed to be, even though thin, light and plenty fast enough define the Airs to a tea. I guess if you know, you know, and if you don’t know, get an Air. 
And does the multiple displays issue being fixed also coincidentally mean it’s now possible to mount two bus-powered SSDs at the same time, I wonder?
Anyway, I have no doubt these machines will make their owners happy. The M2 MBAs really were a joy and no mistake.