That point about the UI is really important. I played a bit of BotW, and then at some point I had a dialogue with an NPC which slightly (not in am obvious way) hinted at some reward if I do something special. But then that immersion was immediately broken as this interaction was added to a "quest log". Instantly the feeling of being smart in the virtual world went away, and it was just a videogamey checklist with nice GUI. No need to remember what the person wanted you to do, or to recognize it as a quest in the first place. Apparently such quest logs are normal in games now.

Similar things hold about minimaps and teleportation. They make things easier, but also less immersive, and therefore probably less fun for most players.