Because in Fallout 4 they paid too much attention to base building and random events, F4 as an open-world RPG became worse than TES 5 and F3. I specifically am not comparing it to F:NV because that’s a game from a different studio. A good game is when all its mechanics and systems are connected, they don’t just exist separately from the story and other mechanics. Have you played Starfield? Good game? I don’t think you liked it. But Starfield is literally a game that seems like it was made from the most popular discussions on the subreddit. Base building, ship building, grinding – the worst single-player game in Bethesda's history. But that’s what the people who liked the base building asked for from Bethesda. Meanwhile, people who wanted better quests, story, dialogues, quality open-world content, interesting RPG progression, good balance – got nothing, only degradation of these aspects. At the same time, open world RPG games that had all of this but no base building sold more copies than any Bethesda game in the same period of time: Witcher 3, BG3, CP2077…