@alminsk I use portainer succesfully and have the same volumes setting as you. I followed a guide from someone long time ago, and it's been a "do and forget" thing. I'm not a programmer, so I can't tell why somethings are as they are.
My network setting are different:

My setup is on a HA Blue (odroid n2+) and these values are also different:

Under Command & logging everything is the same except for the last line:

I hope this helps... As I wrote, I'm not the expert here, or know what every parameter means. Best of luck!
/Fanan