There's definitely room for a hybrid where teams (or whatever org-unit) are able to determine which days will be in-office and what hours people are expected to be physically available for during those days. I don't really need to go into the office 40 hours (plus the 5-8 hours of commute time), but I'd have no objection with 3-5 hours, 2 days a week to facilitate meetings, teambuilding, etc.