I usually play games on "normal" difficulty these days, for a balanced challenge. However, I don't particularly enjoy boss fights, or at least I don't enjoy the extra challenge associated with them. Was thinking it would be nice if games had a separate setting so I could just set boss fights to "easy", while not making the rest of the game less challenging as well.
I think my preference would be to have the game offer to reduce the difficulty temporarily after failing or offer other forms of support to make the boss encounter easier. If I selected Hard then I probably want the challenge of Hard, but if this difficulty spike is too much, then smoothing it out could be acceptable.
This is also ideally in addition to a way to adjust the difficulty mid-game as needed, of course.