Huh? In what reality is this remotely true? It certainly isn't in the one I live in.
The Big 6 control all media in the US, and mergers happen all the time (WBD->Netflix->Paramount?). Google owns web search and web browsing; Amazon owns e-commerce; Alphabet and Meta own adtech; Amazon, Microsoft, and Google own cloud computing; etc. All of these companies make frequent acquisitions and expansions. "Antitrust pressure" is just the cost of doing business.
What I think the author is referring to are the minor concessions Apple has made in some territories, mainly the EU. And even there, they're using every dirty trick at their disposal to do the absolute bare minimum.
Anti-competitive moats are still alive and well, and growing larger. It's curious that the author is positive about "AI", when that is the ultimate moat builder right now. Nobody can basically touch the largest players, since they have the most resources and access to mind-bogglingly large datacenters.
What a silly article. I don't understand how anyone can consider the current state of the tech industry "fun". I've been following it for nearly 30 years now, and it has gradually been devolving into a place that's anything but fun. Especially in these last ~5 years. I wish I could be optimistic about the future, but it should be obvious to anyone by now that technology, mostly but not entirely by misuse, is the cause of most of our problems.