lekkerlinux That's why Windows and Mac is so big, good marketing.
No, they are big because they have a long history of (1) backwards compatibility for software, (2) hands-on demo units in electronics showrooms, and (3) pre-installation on client hardware. These things are the most important factors for the majority of people when buying new machines. Most people just want to keep using the software they always have, will never install their own OS, and want to be able to try out new things before they buy. Chromebooks nailed this when they first came to market by using familiar software (Chrome web browser), making OS updates as simple as a Chrome update, and making sure that major electronics retailers carried floor models for people to try.
Conversely, there has never been a successful brand of Linux hardware which promises backwards compatibility, comes pre-installed with an OS, and has hands-on units for people to try before they buy. System76 and Dell XPS systems can tick the first two boxes, but won't ever have the same market pull unless they find their way into brick-and-mortar stores.