Help with HassOS Logs

I have HassOS 4.10 installed on a 32GB SD card. When I remove the SD card, there is a Logs folder in the HassOS-data volume that contains system journal files that are 134MB in size. Every day 2-3 more of these log files are created. They also persist through Hass restarts and host restarts.

I have logger set to error as the default level. And very few errors are showing up, so my home-assistant.log file stays very small. What are these other log files and how do I get rid of them? Currently they are taking up almost 4GB and growing everyday.

They will grow till they are 4Gb.