I get the point of the article -- the mega rich are driving a luxury economy that is good mostly for them.
I would argue that the Apple Air laptop I'm writing this on is not a luxury product. I like it because as a software engineer, I can access its unix-like commands and do stuff I couldn't do easily on Windows.
Windows is now much more accessible from the command line than it used to be, too. You could always get at stuff through DOS shells but it was a pain, but then Linux came, then Apple changed its OS via the Next computers, and here we are, with many, many more options, not just as software developers, but as consumers.
I don't have an iPhone currently, but I've had plenty of them in my past. I am currently using an iPhone knockoff - an android phone, using an interface that was basically copied from the iPhone.
This is also good, because android has its own features. I'm not a "fan" of either. I just roll with my gut, but the point here is that I don't consider either of them luxury products. I need them to work with other people in my field.
Cars are a bigger problem. They're a necessity in many areas, but they shouldn't be. That's a completely different issue that has been well covered recently elsewhere. They're terrible for the environment, they're expensive and ridiculously inefficient. I try to do without them when I can, so over my many years on this planet, I have possessed cars, and I have not possessed cars. I currently don't own one because I live in an urban area and don't need one, but I take Uber frequently because some places I need to get to I just can't do safely.
You nailed it early with Vuitton - I think you should have stuck with that :-)
Oh. And Musk is losing his mind, but that's another story.