Not every sidequest. For example I'm stumped on having to offer Farosh's scale after finding a hidden shrine. No hint, no one to ask. Usually it's around the area yet nothing. There are a lot of fetch quests too, yet those are just filler anyway. And I still have no clue how to find memories after 80 hours, stumbled on 2 so far.

There are always exceptions, but the 7th gen really kicked off the casual hardcore gaming scene for real. Collectibles, trophies and achievements have very little value from a game design perspective are often used as padding in games with poor writing, slouchy pacing or lacking core content.

One of my all time favorite action movies is from the early 2000's (Bourne Identity), but this is also around the time when almost all action movies started to want to become "smart", foregoing a lot of action, so despite the exception, it still marks the beginning of trends I don't really appreciate.

I disagree. There is a quality of life in knowing where to go. If everything is open, it will be incredibly difficult to return to the game after a break and it's nothing more than a waste of time. Quite honestly... most will just look it up in a guide.

I described pretty detailed how it works. Why do you make still these assumptions?

Actually the quests in Zelda give you pretty good hints, just not a marker on the map.

For memories: This guy that turns up practically everythere where are beds and creates paintings, he can tell you about the photos saved on your device. You can approach him and he tells you something about that photo, where it is. Still not easy to make out the location, but radically reduces the search-area.

When you do piece it together you'll probably appreciate that they didn't tell you outright. It becomes clear what to do when you come across something obvious in the same general region.

When I was looking for memories I would look at features in the pictures and guess the general region of hyrule that the picture likely was taken place in. For example, one of the pictures has hyrule castle and a certain flying object, which tells you the angle it was taken and the general direction. The next time I was in that vicinity I used my map and walking around to guess where it is add based on the angle. Hunting memories was fun, because it felt natural, as if I were trying to find a location based on a picture using landmarks, but in real life. Some of the memories gave very few clues, but there are NPC's which lead you in the right direction for those ones, usually after you finished a different side-quest. 

Don't want to spoil anything more than that.

That's not what I'm talking about, on both fallout 4 and skyrim if you speak to the right person that person is going to tell you where you need to go. Yeah a lot of time happened to me too, I found an Item and I didn't know what to do until later on the game where some npc told me "hey, do you have this stuff, or do you know that you can find that other stuff at some camp" instantly saying that my mission was completed cause I had the item already. It's the structure when you already have the mission in the mission menu. On Fallout 4 I know I have to go to Diamond city, but I don't need to know the exact location, just tell me it's south east and looks like baseball park, I don't wanna get lost I wanna try and find the place by myself without a gps telling me the exact location.

On breath of the wild you have the location of the main quests from the beginning, when you acquire the map of a new region it tells you the names of the zones inside those regions, there's where you go to explore to find side quests and the npc gives you a hint or a location near the quest and then you need to figure out what to do when you're there. Not just go and find the item at this place or kill the monster at this place, you need to solve how to get there even when they tell you the location. That adds a sense of discovery and you feel like you're doing more than just a quest for video game points.

that's why the title says "open world should try this" I'm saying that OPEN WORLDS should try this. I'm not saying that breath of the wild invented this, but the hand holding on modern open worlds is a fact.

that's the thing, you know where to go because you have a map but you need to explore or find out how to do stuff by yourself and not thanks to a gps.