Ideally try to avoid using Celery at all. It's the most consistently buggy, poorly documented, worst quality major Python project I have used so far.
Here is a fresh example: they deprecated CELERY_ prefixes in Django settings for some reason, which makes zero sense [1]. But because it's Celery, they only warn on a few properties but not others, and the tool they ship inexplicably renamed completely unrelated settings for me [2]. And yes, apparently the new way doesn't work either [3].
It's very characteristic of what I've seen from Celery over the last few years of working with it. If you are doing anything greenfield, it's best to avoid it altogether.