Currently Online 
Open world games are expensive and complex to make. They are the gold standard for gaming. Linear games are easier to develop since there is more predictability in the design, and it is simply easier to fill small sections with meaningful content
I think there are two types of open world games: open world games designed for non-linear gameplay (the best example being Zelda: BOTW) and open world games designed for linear gameplay (the best example being Horizon Forbidden West)
However, open (or semi-open) games with non-linear gameplay tend to be overwhelming for casual players. I will use Divinity: Original Sin 2 (one of the best games released last generation) to explain this.
The first act of the game introduces you to a big map but locks your progress to some quests that you need to complete in a relatively small area (Fort Joy) until you finally understand how to play the game. Only once you manage to escape Fort Joy are you able to explore the rest of the island, and that’s when the map truly opens up
The second act, however, is a MASSIVE open area with many interconnected sections and dungeons, dozens of quests that interact with each other, and different expected levels for each section of the map. Unless you are good at RPGs, the second map is likely to be a roadblock for many players. Many will drop the game here because it’s too hard, and the quest progression is too overwhelming.
So, what developers do to avoid this is streamline the open world game with markers. The open world games then turn into linear games with simply more to see and more walking. Some people like this because just walking through corridors can feel constricted and even claustrophobic. Having the ability to walk freely, even if the story progression is fairly linear, can be more engaging for some people than simply following a predefined path. This is where all the "open but not really" games start to pop up
Whether you like linear games in open maps is up to personal tastes. I don't have anything against them, I actually kind like them. The probably of those games is almost never about them being linearly designed, and more about the gameplay loop being tedious and unfun
