I'd argue what will get it to happen is upping the workplace quality.
The push to get people back to work is inevitable. Of course they could do what economics says to do: provide incentives to enhance the utility to the worker of going into work vs staying home.
Food. Workout. Food. Commuter perks (free bus card, free bikeshare, free scootershare). Food. CHILDCARE (a whole new can of beans, who with kids does not recognize the paramount need for nationalized child care now).
Did I mention food?