I hadn't monkeyed with it as the ovpn file populated everything but the user and password and didn't want to bork it. I'll give it a trySet VPN behavior in the OpenVPN client screen, Accept DNS Configuration setting.
Accept DNS Configuration Definitions
- Disabled: DNS servers pushed by VPN provided DNS server are ignored. DNS specified on the WAN page are used.
- Relaxed: DNS servers pushed by VPN provided DNS server are prepended to the current list of DNS servers, of which any can be used.
- Strict: DNS servers pushed by the VPN provided DNS server are prepended to the current list of DNS servers, which are used in order. Existing DNS servers are only used if VPN provided ones don’t respond. To specify a custom DNS, enter the line in the custom config section: dhcp-option DNS dns.server.ip.address (e.g. dhcp-option DNS 1.1.1.1)
- Exclusive: Only the pushed VPN provided DNS servers are used.