I have installed an instance with version 15 as a Docker container with Docer Compose. When the container is started, three networks are created (frontend, backend, default). While frontend and backend have the typical network ranges (172.x.x.x), default apparently has a different range (192.168.16.x). This results in me having overlapping networks as I already have the 192.168.16.x network elsewhere.
Is it possible to change the default network to the usual Docker range as well (172.x.x.x) so that there is no overlap?

There is also another problem. I need to install a second instance on the same host. However, it seems that the containers are then overwritten because they seem to have the same name. In any case, I can't manage to run two instances in parallel. How can I manage this?