I agree almost 100% with you on this. I did play Oblivion, but Skyrim has the more interesting world IMO which makes it a slightly better game. The strength of Bethesda games that makes them good, in my opinion, is the same every time: explore a large interesting world with your own created character. This explains (in part) why people like Morrowind so much: the world is just so weird and interesting.
The problem is they don’t know how to improve on that concept. Instead they are mostly adding features that either don’t add anything to it or actively detract from it. For example, Fallout 4 received settlement building and weapon crafting. But, the time I’m spending on my town, I’m not actually out exploring. If I can craft weapons, I care less about the cool weapons I find in dungeons. Now, Starfield got rid of most of the crafted world altogether in exchange for procedural planets that aren’t interesting to explore at all.
Aan an aside, I don’t think it even makes sense to compare the first two fallout games with the Bethesda ones. Fallout 3 and beyond are not really sequels, they’re a completely different series set in the same universe.
You’ve hit upon the crux of the issue, in my opinion. FromSoftware games in general are built on exploration and discovery, finding crazy cool stuff in some dark corner of the game is a big part of the experience. However, for discovery to be properly rewarding you have to allow for the possibility that the player will just miss the stuff you’ve hidden. Indeed, in a blind playthrough of Dark Souls you’re likely to stumble upon a bunch of different secrets and still miss 50% or more of them.
That’s gonna be excruciating if you insist on “100% completing” the game. It kind of goes back to older days of gaming when there was no internet and no guides, and you just played the game and were happy when you saw the credits, and had no idea you even missed anything. I feel like modern games with their map markers for everything and completion percentages visible have kind of changed the way many people approach games.
Not to say there’s anything wrong with using a guide, play the game how you like. And there is definitely an argument that if you bought the whole game, you’d like to experience the whole game.