We used our travel router for the first time in a campground. Very impressed. We had a half a bar on the wifi, on an iPhone and iPad, couldn’t do anything.
The little travel router hooked up and we could both watch YouTube, email pictures, excellent results. And it includes a VPN. We already have a vpn on our devices so no advantage there for us.
On our sailboat I installed a Bullet “booster” connected to a home wifi router. We could connect to public wifi from quite a distance. It was a bit tricky to set up and sometimes to use.
This is simple and inexpensive and can be used while travelling in hotels, cruise ship etc.
Bob
https://www.gl-inet.com/products/gl-mt3000/