TeaMaster69 It's a shame that this feature, which exists in normal android, is deleted in graphene.
It seems possible that a misunderstanding is in progress.
Google's stock OS for Pixel devices is derived from AOSP; it is not the same as AOSP. GrapheneOS, like Samsung's OS, is also derived from AOSP. AOSP is the baseline Android; Google's stock OS for Pixel devices is not the baseline Android.
Just because Google's stock OS has a feature does not mean that Google contributed that feature to AOSP. Thus the absence of a feature that Google's stock OS has from GrapheneOS does not mean that the GrapheneOS developers "deleted" the feature.
The GrapheneOS project does remove a very small number of features from AOSP, such as pattern unlock.