You joke, I assume. My boss was notoriously against working from home. COVID proved him VERY wrong. People where just as effective, if not more. They where much more flexible with customer. It doesn't matter that a client ask you to say a bit longer, if you're already home and have everything set up.
Most people I know never worked 5 days a week. They just pretended. Now they don't have to pretend as much (as long as that little Slack dot stays green!)
