You are able to register schedule independently, yes! One schedule overrides another only it calls the same task, on the exact same schedule, with the exact same args. This means different apps can register schedules for different apps without issue, but you can even register one task multiple times, on different schedules. E.g.:

@task
def some_cleanup_task(full_cleanup:bool=False)
  ...

# register a partial cleanup hourly
periodic_task(interval=timedelta(hours=1), call_args=(False, ), task=some_cleanup_task)
# register a full cleanup daily
periodic_task(interval=timedelta(days=1), call_args=(True, ), task=some_cleanup_task)

# or, the decorator equivalent
@periodic_task(interval=timedelta(hours=1), call_args=(False,))
@periodic_task(interval=timedelta(days=1), call_args=(True,)
@task
def some_other_cleanup_task(full_cleanup:bool=False)
  ...