Remix of the same song for an anime opening and ending

[DarkAngel]

i came across mo dao zu shi's ending and at the 9th episode of the first season the same song sounded way better.
did you encounter this in anime before?

 

[MoonlightShadow]

It's all the same

 

[Star_Of_Hope]

I don't think I paid that much attention for an anime opening or ending.