I don't know. Content matters more to me. Many of the articles that I read have so little information density that I find it hard to justify spending time on them.I often use AI to summarise text for me and then lookup particular topics in detail if I like.
Skimming was pretty common before AI too. People used to read and share notes instead of entire texts. AI has just made it easier.
Reading long texts is not a problem for me if its engaging. But often I find they just go on and on without getting to the point. Especially news articles.They are the worst.