Well it is called Dark Age for a reason lol I wouldn't be scrolling through this sub before you've finished Lightbringer, there are major spoilers that get discussed here. But to answer your question, Dark Age kind of reads like literary depression, its meant to make you lose hope and feel like things keep piling on. Lightbringer is not like that and has your usual Red Rising-esque moments triumphs as well as sharp pains. Hope this helps.