Depends on which version you're talking about. Fortntie in general, Battle royale mode or Save the World?
For me personally, I hate Battle Royale so much. It's incredibly overrated, filled with screaming kids, users who play the free game *for free* get ridiculed all over the place. My hate for the Battle Royale only strengthened with the Season 5 teaser.... Please Epic never do that again..
Save the World mode on the other hand though I really enjoy, it's got good characters, very good base premise for a game and so many quests constantly. Sure, it's "kind of" been pushed to the side since the most money is coming from Battle Royale. My only issue with this mode is how it'll be whenever it goes free. Since at this current point, it really isn't suited to be a free game. I mean, I'd love for a free game to be like this, but it really wouldn't work from a business sense for multiple reasons.