proximity sensor causes unusual high battery drain with WaveUp app

• /e/OS version: IMG-e-2.1-t-20240603406607-stable-FP3
• Device model: FP3+
• Developer mode enabled: yes
• Device rooted: yes
• Trackers blocker enabled: yes

Summary

Using the app WaveUp (on F-Droid) with the proximity sensor causes a high battery drain.

This looks like a driver or hardware problem. See here:
https://gitlab.com/juanitobananas/wave-up/-/issues/148

Is there a chance to get this fixed?
I like the idea of switching on the phone by waving the proximity sensor, because it keeps the power button from wearing off.

The problem

First part of the graph is with WaveUp enabled. Second part (after charging) is without WaveUp.