This tidbit reminds me of a similar anecdote (that my experience aligns with) re: the modern upper class that wearing a $2k Rolex or driving a $70k BMW is frowned upon. But instead they have eccentric "hobbies" requiring $10ks of of equipment, inclusive of "needing" $10k viking stove/range, and $10k subzero fridge/freezer in your kitchen because you are a "foodie" and doing a $500k home Reno because you have good architectural taste and style. They probably still own a $70k Volvo (or now Tesla) anyway :-). In these scenarios I think it's because the $2k watch or $70k car is too easily attained by lower classes that they are no longer considered signals by the upper classes. However blowing $500k renovating a perfectly livable home, or $10k on an appliance you could spend as little as $1k on.. is not.
Another countersignal that the article points in the direction of is level of professional vs casual attire in the workplace. My friends and I are far enough in our careers that personally I've worn sneakers to work for the last 10 years, no business slacks, and sporadically tuck in my collared shirt. The last round of job searching doing zoom interviews, I wore my hoodie for half the calls. If I had done this while job searching out of college, during my internship, or at my first job.. I would not be where I am today.