Outsourcing has always been possible even without WFH possibilities, but many companies reverted from that for good reason. There are also advantages of WFH on whole other levels, like many environmentally. I don't get the point about workplace angst (x), and if there is any, that genie will be hard to put back into the bottle. Personally, don't see this happening though for things that were valid before much for before more WFH.

(x): On the other hand, that is also what is usually driving crazy things like the Mexican wall, to name it symbolically.. so I can at least comprehend partly.