In theory this makes sense, but I just don't see it sticking here in the U.S. Or, if it does stick, my concern would be that it would come with a pay cut, much like how some companies have wanted to reduce worker pay for employees who wanted to continue working from home after the mandatory lockdowns.
The end result would be to ratchet down the work week in labor law once the evidence is irrefutable that moving from 40 hours to 32 hours per week can occur without a significant decline in productivity.