In Django, ModelAdmin, what is the difference between save_form() and save_formset()?

Can somebody explain the differences and/or similarities between save_form and save_formset from ModelAdmin?

The only things i could find about this is from source code.

def save_form(self, request, form, change):
        """
        Given a ModelForm return an unsaved instance. ``change`` is True if
        the object is being changed, and False if it's being added.
        """
        return form.save(commit=False)


def save_formset(self, request, form, formset, change):
        """
        Given an inline formset save it to the database.
        """
        formset.save()

And the docs have only this about save_formset (https://docs.djangoproject.com/en/4.0/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_formset)

The save_formset method is given the HttpRequest, the parent ModelForm instance and a boolean value based on whether it is adding or changing the parent object.

source https://stackoverflow.com/questions/71198400/in-django-modeladmin-what-is-the-difference-between-save-form-and-save-forms