@CyberSocialist What do you mean by "how to multi-home"? In most cases you just add address from another family, and it does not interfere with other families in any way.
This is how it works on dual IPv4/6 stack - separate routing, address discovery etc. Now, multiple IPv6 addresses from different networks is where fun starts...
@kravietz appreciate that, but no DE s provide any nice GUI tools for determining what applications can use what interface(s) - so how to pick low latency vs high bandwidth vs VPN vs Tor interface on a per app basis?