https://arstechnica.com/gadgets/2019/10/macos-10-15-catalina-the-ars-technica-review/

Ever since the iPhone came out in 2007 and almost instantaneously overshadowed the Mac, both in terms of sales and development resources, Apple has been making the Mac a bit more like the iPhone. Sure, a few features have moved the other way—the iPad has gradually gotten a bit more Mac-like as it has become powerful enough to do Mac-like things—but a big piece of every macOS release this decade has been "here's all the stuff Apple brought over from iOS this year."