It will take a while to determine which jobs lose or gain productivity from WFH. Some regimented jobs like radiologists, or call centres we’re doing a lot of WFH well before the pandemic. Jobs that require focus probably also benefit, but in a lot of cases it’s just regaining lost productivity from the switch to open office plans.

The sort of major product breakthroughs that more creative people had during walks, cross team pollination over coffee breaks, or extended lunch brainstorms are probably fewer though. It’s hard to measure.