But here's a fun question: If you aren't permanently in the office, do you need a personal, permanent desk in the office? Because that is going to be the first cut that comes when we all "go back, some of the time". And half the people I pose this question to get upset about it.
My own prediction is that teams are going to book sets of desks together the same way we book meeting rooms. They're shared and you'd better have a reservation.
But "your" desk with your photo of the spouse and kids, your knick-knacks, your notebooks and "your" monitor? I doubt you'll ever have that again.