Thank you for all of the help/advice. It really helped.
A few things:
We do both have to do video conferencing. (a lot)
I have a galaxy note9 and DW has a company provided Iphone6. Changing either in the short term is not likely.
Giving up and enjoying the outdoors would be fun, but at present the side effects, such as unemployment, are too severe.
After reading your comments this is our plan.
Get a MIFI.
Experiment with the phones as hotspots.
Get a wifi extender for campground use.
Questions:
Are we going to far/ getting to much stuff? (Belts and suspenders)
Other research seemed to point towards a togo as a solution. Why did nobody here recommend it?