[Answered ]-Django auth groups not finding groups and does not give permission to users, regardless of the group in which they are

self.request.user.groups prints always None: that is a RelatedManager ^[Django-doc], not a QuerySet. Managers will print the model name with None, so for a Model named ModelName in app_name, it prints:

app_name.ModelName.None

You print the items with self.request.user.groups.all():

print(self.request.user.groups.all())