Except the linux users won't be buying Apple software, from the app store or elsewhere. They won't subscribe to iCloud.
Maybe that's why they ship with insultingly-small SSDs by default, so that as people's photo libraries, Desktop and Documents folders fill up, Apple can "fix your problem" for you by selling you the iCloud/Apple One plan to offload most of the stuff to only live in iCloud.
Either they spend the $400 up front to get 2 notches up on the SSD upgrade, to match what a reasonable device would come with, or they spend that $400 $10 a month for the 40 month likely lifetime of the computer. Apple wins either way.
It's like learning about growing vegetables in your garden but then having to pay the seeds for it much more because you actually know how to produce value with them.
The philosophy at Apple has changed from premium tools for professional to luxury device for normies that makes them pay for their incompetence.
This forum looses track of the world outside this echo chamber
That said, attracting creative users also adds value to the platform by creating demand for creative software for macOS, which keeps existing packages for macOS maintained and brings new ones on board every so often.
Whatever the profit margin on an iMac Studio is these days, surely improving non-consumer options becomes profitable at some point if you start selling them by the thousands to data centers.