Should Grain be reapplied to denoised DVD's?

[Reclusive Eagle]

I am working on a project restoring DVD based Anime.

I've properly IVTC'd it, denoised it without any detail loss (had to denoise due to the DVD compression turning the original grain into noise).
Obviously with a low bitrate source like a DVD removing the noise creates banding.
But ignoring that, should high quality grain be re-added to video?

Not for banding reasons but for authenticity even though it was only added to preserve detail in dvds?

[Boulder]

Rather use a debanding tool which also applies some grain.

I've sometimes used GrainFactory3 if the source has been so bad that it needs to be killed with fire first.

[Reclusive Eagle]

Rather use a debanding tool which also applies some grain.

I've sometimes used GrainFactory3 if the source has been so bad that it needs to be killed with fire first.

Currently using adaptive_grain from Kagefunc but Idk if its even worth adding grain in Avi or Vapoursynth to begin with?

Should I just do it in After Effects?