Since 2002 Richard Stallman has spoken again using term "content" this way.
> using the word as a noun to describe works and communications through which people have expressed themselves adopts an attitude you might rather avoid: it treats them as a commodity whose purpose is to fill a box and make money. In effect, it disparages all the works by subordinating them to the box that is full.
The entirety of that compilation of words is worth a read. I recommend checking out "Artificial Intelligence", "Consume", "Consumer" and "Monetize", "Players" and "Product"
This was the first thing I thought of. Came to comments to search for Stallman. I was going to say I remember him saying it at least 15 years ago, but it's actually 24!
I was searching for this exact link to share here, and then DuckDuckGo surfaced your post.
Reading this article a few years ago was extremely influential for me, as I had been feeling awkward for a while about how we (authors and videomakers) have been going from "sharing actionable information and advice" to feeding the platforms so we can get crumbs from their monetization efforts.