No, thanks. If you want happy productive desk workers, give them their own desks, their own shelves, and possibly even their own blackboards.
Even ignoring increased happiness, this enables giving employees their own tools: keyboards, chairs, monitors, workstations, tea, oscilloscopes, papers, etc.
Again we're talking about a hybrid situation here where typically the employee is likely to be working from home more than they're in the office. I think what you're suggesting makes sense for 3+ days a week in office situations though but 2 days or less and it starts to get tenuous. And for me I wouldn't want to go in any more than 2 days a week so they can keep the permanent desk imo.
Even ignoring increased happiness, this enables giving employees their own tools: keyboards, chairs, monitors, workstations, tea, oscilloscopes, papers, etc.