I lived in hotels for a year and used WiMAX from Clearwire as my primary internet connection. It was pretty good (beating hotel WiFi) except the latency was a bit too high for gaming.

Then I got a proper apartment and cancelled the service and later Sprint bought Clearwire and that was basically the end of WiMAX as a wireless WAN option.

That was certainly the focus 20 years ago. One of the popular proposed use-cases was connecting remote communities or isolated houses to give them internet connectivity.

That was the idea, but the problem was each cell had fairly limited bandwidth. It covered a large area, but couldn't handle a commensurate amount of traffic.