Floors farming

Do floors have specific targeted drops like on 300, rare crystals drop more, or maybe somewhere higher legends drop rate are increased?

when you look in the LegendEx, below each Legend & Eternal Item are the requirements for finding them. Items will have 1, 2, or 3 requirements.

1.Anywhere
2.Found Past Floor ?
3.Minimum Difficulty
4.Found Near Lava (Fire), Snow (Ice), Desert (Shock), Forest (Poison)
5.From Powerful Enemies (Epic, Legend, Mythic)
6.Requires At Least Epic, Mythic 1, or Mythic 3 Difficulty
7.Found In Battle Arena Reward Chests
8.Class (Items Can Be Found That Belong To 1, 2, or All 3 Classes) (Items Shared By 2 or 3 Classes May Have 1 Or More Affixes That Are Different)

Crystals and Mythstones have a minimum floor that they are found on. On every 100th floor up to floor 500, Crystals & Mythstones 1-5 no longer drop and higher CS & MS drop rates are the same as a lower CS or MS. on Floor 500 Calcite, Angelite, Quartz, Diamond, and Larimar stop dropping and Kyanite now has the same drop chance as Calcite while Wisdom now has the same drop chance as Hero.