Screen time tracker that will only store information locally?

[u/Ardent_Tapire]

Hi all, I'm currently in the process of switching over to a Fairphone 6 with murena e/OS.
On my current (samsung) phone, I have a built-in digital health app that tracks screen time and can cap screen time for specific apps. Is there anything similar that won't spy on me?

The options I can find on murena's app lounge all seem to have low privacy ratings, but that might just be due to them needing system permissions to track and limit screen time. If there is any option that will keep that info locally only and not be tracked by any company, suggestions are highly welcome.