Can I use 2-piece veridecentand 2-piece gladiator For a Full Healer Jean?

they spelled Layla wrong in her Premium Team Comp description as aid its Layla and not Leyla

In the era of Dendro and deadly floor 12 abyss.
Jean' damage is useless, E suction give little means, even sunfire combo not long enough for abyss lectors shield.
For heal, better use kuki simultant with hyperbloom or yaoyao for dendro core

You should definitely update this guide with Amenoma which is pretty much her BiS as sub DPS\support.

3 in 1

To get from level 70 to 80 ascendation, she needs 12 Hurricane Seed, not 8.

You mention Jean getting stronger after complete Ascension, however the stuff mention was not ascension talents but constellations. Should correct that section.

Jean's Healing does not get increased by 4 piece Gladiators.