Gaming

For the consumer, obviously.
Patents exist to protect the profit of the inventor, specifically because once you have spent the RnD money to make something, someone else can take your finished idea and create your thing without having to cover those costs. Their entire point is to make sure stuff stays more expensive and exclusive for longer.

But the issue isn't that patents or even software patents exist as a thing, they are important to protect against copying, it's that seemingly almost anything no matter how simple, vague or universal it is can apply and get patented, and whoever owns those patents then doesn't have to use or license them, instead they just sit on them waiting to strike with a lawsuit.

Like one of the Nintendo ones which is the genius and detailed idea of "you can capture objects and ride them in a virtual world using the controller input in a vidya gaym!" - a concept entire unique and one that hasn't been ever used before in a game, now prohibited to be done by anyone else until 2041.