How do you use Planner?

How are we using Planner? Not correctly and this bugs me :)

We have first tried planner a year ago, but it didn't stick. A few months ago we started testing Teams internally in our IT group and Planner tab has been added and from now on it is being used. But i think Planner is more a project management tool (plan = project). But our head of department just decided to use it to track various tasks. So our "project" is a never ending bloat of hundreds of various tasks, some are completed, new appear all the time. So the chart has no value. I have voiced my opinion a few times, but it just goes into void. I guess, this is still better than using some Excel sheet and it is centralized and integrates with Teams. You can access it on the web and in mobile app. So it has its benefits. But one had to use it correctly to get most value from it.

We also don't have a strict rules for task creating. It also annoys me when one task is assigned to 2-3 people and then it bugs you that its due date is here, but nobody knows who should close it. We started to use checklists with names attached to bullets inside such tasks to see who has to do what for the task to be completed. But this internal checklists are cumbersome. They are short, they show only a few words in a long sentence.

Maybe at some point it will evolve into something more useful. So far it's a messy pile here :)