How do I find fixed wireless internet information?

Since the pandemic started, I have been working from home full time, using a mobile WiFi hotspot as my only internet.  No wired connections (phone line or cable) are available to the six homes on my immediate street and the other areas close to us.  Satellite is not a viable option for constant video conferences.  So far I cannot get any help getting ATT to either hurry up and bring the Fiber down our road (it has been installed on the main road 100 yds away), or stop throttling the only internet source I have?  I have been trying to find information or check availability for fixed wireless internet but the system keeps saying I already have internet (i guess it thinks the mobile hotspot counts) and when I call, they keep trying to sell me on getting a wired internet service (I have attempted three times in two years and they cancel the installation appointment, without telling me, because it is not available at my location.)  I feel frustrated and ignored every time I try to find a solution.