In NetworkManager, you set your DNS servers using `ipv{4,6}.dns`. Similarly, you set `ipv{4,6}.dns-search` with zones that you want to be looked up via DNS over

In NetworkManager, you set your DNS servers using `ipv{4,6}.dns`. Similarly, you set `ipv{4,6}.dns-search` with zones that you want to be looked up via DNS over this link. By default, the default DNS is the link with with default route. If you want to designate the default DNS via different link, set up the search for `~.` Then `resolvectl status` will show you each link, what DNS is configured for it, what domains it will resolve and which one is the default.