Still not getting it, Alan. "Productivity" is the economic term for employees' efficiency. Efficiency is output divided by input. Economists perceive this the way you do, namely, solely from an employer's perspective. Since there has been a surplus in the labor market for many decades, that calculation dominated.
Post-pandemic, there's a shortage in the labor market, which will likely continue until the Fed succeeds at causing a recession. As a result, those who perform labor are now performing their own efficiency/productivity calculation, one defined by money earned divided by the costs (dollar as well as time, both working and commuting) of being employed. Under this calculation, especially considering that employees have learned employers generally have no loyalty to them whatsoever, when directed to return to the office many are simply quitting and being hired by other employers who permit working from home. There's not the slightest doubt that working from home results in higher personal productivity (dollars earned per cost of being an employee) for individuals performing labor. Until conditions change, that productivity calculation will predominate in the minds of workers.
It's only those jobs for which working from home isn't viable, like the ones Kodak is attempting to fill, where the traditional productivity calculation still controls. Of course, Kodak must now compete for employees with other employers that do allow working from home, so it too feels fallout from the new job market.