A good idea would be a Wi-Fi intermediary that you connect to the #hotel_wi-fi and it presents as a single device ... but you can connect multiple devices behind it. And yes, building in #Tor, #I2P, #OpenVPN, #WireGuard, #IPSec endpoints that could be used to prevent the hotel's network and its users from spying on your traffic would be great.
I think I'll go back to carrying a Wi-Fi hotspot when I travel. (I do occasionally use my phone as a hotspot, but battery life is not good when the hotspot is running.)
While I like the idea, the thought of carrying my data around (anything more then is really needed for that days travel), as well as through TSA in the states and whatever these agencies are called in other countries, immigration, etc, would scare the hell out of me.
I prefer to bring the minimal with me (usually a few movies/music/podcasts) and if I need something get it over the 'net, especially when not in the US.
While I am not planning on any travel until sometime next year (hoping) my interest in this is for when I travel as I may not have my current VPN (former $EMPLOYER - with permission) then and I would really like a solution before then.