No Route is Added in Linux-Client

System: Ubuntu 24.04 LTS
Client: 1.6.4


DefGuard is configured to set a Route "0.0.0.0" through the tunnel.
This works fine on the Android client, but the Route is missing on our Ubuntu machines so not all traffic is channeled through the tunnel.

We noticed the problem when one client had the same local subnet as the DNS servers rendering some addresses unavailable.