You can make this argument for literally every business, though. Which business does not have a single pool of resources and multiple clients to consume them?
The majority of factories. They get an order in and produce the product until that order is fulfilled. They don’t have to be running 24/7, it is just that that is the most profitable.
But if you stick to your “analogy”, a factory also chooses who their customers are. And if some are too demanding, they just drop them. Like the casinos.
Most of the annoying stuff that Linux users hate about Windows are because Windows has to cater to even the least technologically knowledgeable users.
It is why Windows updates are forced, why so many files are locked behind SYSTEM user and can’t easily be circumvented, why some settings are registry or Group Policy only, why some settings are opt out, …
Without those, their support center would blow up.
So if Linux wants to become mainstream, it will have to cater to those users as well. And Linux will slowly turn into Windows.