>but what does macOS offer a power user that Linux doesn't

Flawless suspend/resume, best-in-class battery life, best-in-class touchpad drivers, lots of things "Just Work" that are painful and/or tedious on Linux.

It might be better to ask what Linux offers the laptop user that macos doesn't. I run Linux on my desktop boxes but wouldn't dream of daily-driving a Linux laptop.

>and which makes it worth sacrificing the ability to run your machine the way you want?

I consider myself a power user. I have never once felt unable to run the machine the way I want. You can disable SIP and Gatekeeper and whatever else if it pleases you. I still have a terminal and a package manager. If there's a particular utility that I need on Linux I just spin up a VM, but I can count on one hand the number of times I've needed to do that in the last 12 months.