Ubiquiti is awesome, but their IPv6 support leaves something to be desired.
I have two ISPs, one with IPv6 (Starlink) and one without (Frontier).
I want to use Frontier for all IPv4, with IPv4 failover to Starlink, and I want to use Starlink only for IPv6.
UniFi networking won’t let you configure this, and I’m not going to SSH in to my UDM to manually set routes, that will be lost at next boot.