Wireguard, Routing, Travel

You may find answers in these enlightening posts.
forum.openwrt.org/t/configuring-dns-resolver-with-wireguard-tunnel-on-portable-router/169418 forum.openwrt.org/t/wireguard-dns-in-21-02-x/110853 forum.openwrt.org/t/make-travel-router-send-all-traffic-to-home-wire-guard-server/92205