Thanks to Divine Ingenuity, Active Camouflage unlocked in 20 sec
I got so many ideas for this!
More will be coming soon.
The simplest achievement to unlock is the one relating to elemental reaction but it's not limited to those kind of achievement.
This video was made for the HoYoLAB Strategy Guides Contest, here is the link to the post: https://www.hoyolab.com/article/19304396