Limit persistent journal log size
The systemd default limit is between 10% of the filesystem size and a maximum of 4 GB which seems excessive on a phone. E.g. on my FP4 journal logs currently use 1.7 GB of disk space.
There is also the related problem of excessive logging by repowerd (repowerd#34 (closed)) and qtmir as well as kernels (e.g. ubports/porting/reference-device-ports/android11/fairphone-4/kernel-fairphone-sm7225#2) and android daemons depending on the device.
Edited by Guido Berhörster