I think my problems with insanely slow Internet connection speeds have been solved. The Inseego 5G MiFi M2000 hotspot with cellular Internet access from T-Mobile has worked really well so far.
Here is a screenshot from an Internet speed test I just ran:
That is a massive improvement over what I was getting without my mobile hotspot. Now I can actually get some work done. I’ll update this post after I’ve had some more time to test everything.