Private/Internal DNS With Ubuntu 18.04

I'd like to change the nameservers on an Ubuntu 18.04 linode. I've already deactivated network helper for the linode by disabling "auto-configure networking" in Linode Manager. Do I need to select "full virtualization" instead of "paravirtualization"? When I change the contents of /etc/netplan/01-netcfg.yaml from

network:
  version: 2
  renderer: networkd
  ethernets:
    enp0s3:
      dhcp4: yes

to

network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      dhcp4: yes
      dhcp4-overrides:
        use-dns: no
      nameservers:
        addresses: [ <my nameserver linode IP> ]

and then run

sudo netplan try

the changes are accepted. But when I run systemd-resolve --status, I still get the old nameservers. The linode is set to "paravirtualization". Is this correct? Any suggestions would be appreciated:)