Linux can be adapted to fit any use case you have, and that’s an important part of its flexibility. What you really are getting at is that mass producing a machine with an OS built into it is convenient for consumers. See Android phones or Steam decks for evidence of this convenience being important to the sale of Linux based devices.
In the not too distant future, windows will go out of fashion for the home desktop PC. Someone will sell a cheap and cool arm based PC with a decent distribution. It will be a slow win, nothing like what we saw from macOS.