Endwalker (6.X) - Spoilers ahead!

Trials

Level 83/4 Zodiark (Extreme)

no real jp-specific information here, but here is a vital tip:
https://twitter.com/xivdiagrams/status/1478825381264199680?s=20

Level 87 Hydaelyn (Extreme) - Spoilers in macro!

Hamukatsu strat differs from most EN parties in that the adds are seperated as per macro, whereas EN will just stack them together.
Hamukatsu (ハムカツ) macro (JP):

Hamukatsu (ハムカツ) macro (EN):