I just spent an hour keeping an eye on my kids while they played outside. A desktop / laptop computer just isn’t an option for many lifestyles. And as phones have taken over and gotten more expensive, fewer people are willing to spend $1000 on a computer anymore because they’re already paying $1000 for a phone. I’m not sure I always agree that desktop is a better experience, either. Mobile interfaces tend to be lean and focused. My password manager integrates more easily on my phone than elsewhere. Push notifications are often helpful to have. To each his own but I wouldn’t assume desktop is objectively better all the time.