Some people have budgets of $0; they have to use the device they're using currently. I'm already feeling empathy for them in a year or two once all their apps are written by software engineers on Apple silicon Macs who don't test performance on older hardware…
Sublime Text can (and is) used by many people who pay nothing for it. And, to be clear, I was talking about apps in general, not just Sublime Text–which is one of the few apps I trust to not fall victim to the issues I described.
That is true, but it's possible to avoid using those. What you can't avoid using the actual OS itself. Try booting into Yosemite sometime and comparing your computer's idle resource usage to the latest Big Sur and you'll see what I mean: try as I might, I cannot get the computer to use less than 5% CPU usage, while this used to be trivial.
