I feel we should embrace custom made quests with high quality rewards, that are fundamentally designed to be difficult.
I also think the folders could be organized in a more structured way. Like star difficulties over each quest and recommended team etc.
CCC and TOD provide true endgame challenges that are fun to work towards as a team. But you basically can only learn about them through word of mouth or random quest exploration.
I feel if you could have a "tier 1 quest" "tier 2 quest" etc. And a little check box next to it showing if youve ever completed