Earlier quoted context omitted.
For me, it is the ability to tether my laptop to an iPhone to use the data service on my iPhone. This alone made me give up on Windows laptops and Android phones. Sure, you can tether Windows laptops to Android phones. But, it is a slow and cumbersome process. I use this functionality frequently enough that it was worth it to switch platforms over it.
When I switched off Android >5 years ago, even then, it was as simple as turning on the hotspot and connecting to it. It was no more cumbersome than any other wifi network. This was with a Pixel device and Linux laptop, and I am sure it works on Windows too.
The only difference is Apple will do this automatically for you. If you open up your mac, and don't have network, you get a little pop up that says "use iPHone's connection?" and will turn on hotspot and connect automatically. Nice, but hardly any different or time saving really.