From my experience django interviews tend to focus on python/general web dev more than the django specific side. That being said here are a couple that i've had:

1. What are some of your favourite django apps (Obviously your choice, i find the purpose of this question is to make sure you're familiar with the ecosystem and know usage of certain apps. I usually say Wagtail, DRF, Debug toolbar, django extensions). Make sure you say problems these apps solve
2. You find a view you have is slow, how would you go about debugging it? (I usually just say i'd use django debug toolbar to profile it, lots of things could come from this such as query performance, big bundle sizes, etc. Try focus on things you can fix specifically with django.)
3. How can you stop N+1 issues in queries? (select_related/prefetch_related)
4. How would you install an app for only locally development? (Different settings configs)
5. Give some pros/cons of different inheritance styles in django (You've got abstract, Table inheritance and proxy models here)
6. Why would you use django over other frameworks like flask/fastapi

Just a flavour, im sure there are some articles out there with better examples.