I did the math for how much I would have spent on long distance during the pandemic if it was in 1970, it worked out to several hundred thousand dollars.
Probably wouldn't have saved lettering, but it would likely have made faxes far more common in peoples homes - you can't have a meeting with your boss, but you can send him an update pretty easily.
In some ways I think it was our course that we had good enough technology to do WFH, but didn't get to take advantage of that to chance how we worked.
The pandemic is a (hopefully) once in a lifetime opportunity to change and we kinda wasted it.