No, genshin is not a reference for cultivation.
"More specifically "Cultivation" is a progression model often seen in Eastern fiction (xianxia, wuxia, xuanhuan[sp?]) where characters get stronger by advancing the bodies & souls through stages derived from & representative of elements of Taoist/Daoist philosophy (& I presume other Eastern/Asian philosophies, since they all tend to feed each other to a degree)."
So this definition by the reddit thread is incorrect then?
Link:
https://www.reddit.com/r/litrpg/comments/cxok9a
It's correct but not for the whole genre. Not all of them use elements of taoist/daoist.
If you use genshin for reference, it would be in the world bulding, you can have gods who rules a concept/elements in your story, and have human or other races cultivating to have a chance to reach them (or never reach them, depending on what you want to do).
Their tons of novels you can get reference from, while being slightly the same, all cultivation stories are somehow different.
Here some reference if you need it :
Reverend Insanity, Martial World, Soul Land (Any of them, but better going with the 3), Super God Gene, The Desolate Era, Against The Gods, Godly Model Creator, Tales of Demons and Gods.
They are different in how the cultivation path are made and how they progress in it.