For now there is no such feature, but since everything is inside the restic repository, it is possible to extract single files.
Usual network conflict problems 
It’s not a requirement, it’s a configuration: you can change the network to fit your needs.
The network is presented at first configuration wizard with a note:
If you think we can improve the page or the doc, I will gladly try to fix it with suggestions! 
Most rootless modules, and all rootfull ones, use the IP of the network interface. Some rootless modules uses the internal network for pods, using the default configuration (it may vary on different distros): podman-network — Podman documentation
But this network is inside an isolated namespace (normal applications can’t see it), so I never encountered network conflicts. 
Please bear in mind that, to avoid such conflicts, NS8 explicitly require the network host for rootfull modules.
Network is hard and I agree with you that we might need some tweaks or documentation to cover most common cases. But we are trying hard to avoid conflicts as much as possible! 