Yes, but Macbooks are currently the most best selling mainstream ARM laptops any average consumer has heard about and can easily get thei had on, for MacOS.

Apple and MacOS ecosystem guarantee amazing sales and mainstream popularization of these devices, giving them a numbers advantage, meaning it's by far the best choice platform to target with the biggest RoI for your reverse engineering effort versus some more obscure ARM laptops which could be better on paper but nobody bought.

The "market size" argument (or rather "installed base") implies that Linux can only exist as a parasitic PC operating system riding the coattails of established vendors, which I believe is no longer true in 2023. Big distros like Ubuntu and Fedora offer first class experience that rivals and surpasses MacOS and Windows in many ways, especially for technical (dev) markets and are worthy of their own ecosystem.