@sigmaklimgrindset well, for one, it is a completely separate app
No seriously, where ReVanced is a collection of patches for the official YouTube app(s) (and some others)
NewPipe is a built-from-the-ground, independent, no-Google-Code YouTube client that relies entirely on scraping the website using NewPipeExtractor
As such, the entire experience apart from the content itself differs.
@HurlingDurling
Just go right to the source:
https://lineageos.org/Changelog-28/