Battery draining too fast

I’m facing a problem with this Fairphone 4’s battery charge. It is cleary draining way too fast. I installed AccuBattery to diagnose the problem, which seem to be on the software-side, or at least it isn’t just a damaged battery, since it says that battery health is at 104%.
What I found strange is the app “Quickstep” being so power-instensive. From I read online, this is the application launcher. The battery going down by 30.9%/h with the screen off is not normal either…

Do you know what could be the issue?

Thank you in advance!

A post was merged into an existing topic: FP4 Battery life