It depends. On the days I've WFH in the past, it was clear that I could concentrate better. Now that I've been doing it for a week, there's no contest: I am definitely far more productive working from home, even though at work I have an office to myself. The interruptions, hallway conversations, miscellaneous noises are all gone. I can choose to temporarily ignore an email or a Teams notification; I can't ignore a noisy label printer screeching from across the office.