UPDATE 2, because i am too impatient, it seems.
Solved this, now that i am at the machine with the "issue" - turns out i had to log out and in again to make this work...
Obligatory didyoutryturningitoffandonagain.gif ;)
- Go to "System Settings" -> "Wi-Fi & Internet"
- Underneath the list of networks/devices theres a settings icon, click that
- Deselect "Show virtual connections"
- In the settings menu the docker bridges etc. will disappear immediately, for them to disappear in the status icon overview i had to log out-and-in to make them disappear as well.
HTH