This article “The Negative Impact of Mobile-First Web Design on Desktop” feels like the reverse of what we would have seen 10 years ago, complaining about designs that don’t work on mobile.
The article states that 55% of web traffic comes from mobile. I bet if we measured “human time spent reading content” that mobile would be even higher.
This fits into my death of the professional desktop operating system theme. I think we should consider desktop design to be a luxury, for art and experiences.