I have the Gl.inet Slate, and when I get to my hotel each week, I just plug that in, maybe log into its admin interface and deal with the captive portal (not always necessary since I usually stay at Marriotts and it use remembers), and then all my devices connect to that like I’m at home. Super seamless.
I need to go through and setup ad blocking and possibly default VPN/Wireguard connection, just haven’t gotten around to that part yet.
Last weekend I stayed at a Hyatt, and the first thing I did when I got to the room was power it up. But I couldn't for the life of me get the captive portal page to load when I was connected through it. It worked fine connected directly to the hotel's wifi, but through the router - nothing. So I gave up. It wasn't worth the hassle.
Also, make sure your router dns settings aren't interfering with the captive portal itself (they hijack your dns and redirect you when they haven't had you login before).
Carrying yet-another-piece-of-equipment is added complexity and confusion I have neither the time nor inclination to deal with