VPN Server, only tunnel DNS requests on client device

Client.ovpn

client
dev tun
proto tcp
remote [REDACTED SERVER IP/DOMAIN] 1194
resolv-retry infinite
nobind
persist-key
persist-tun
key-direction 1
remote-cert-tls server
tls-version-min 1.2
verify-x509-name server name
cipher AES-256-CBC
auth SHA256
comp-lzo
verb 1
<ca>
-----BEGIN CERTIFICATE-----
[REDACTED]
-----END CERTIFICATE-----
</ca>
<cert>
-----BEGIN CERTIFICATE-----
[REDACTED]
-----END CERTIFICATE-----
</cert>
<key>
-----BEGIN PRIVATE KEY-----
[REDACTED]
-----END PRIVATE KEY-----
</key>
<tls-auth>
#
# 2048 bit OpenVPN static key
#
-----BEGIN OpenVPN Static key V1-----
[REDACTED]
-----END OpenVPN Static key V1-----
</tls-auth>

server.conf

# Automatically generated configuration
daemon
server 10.8.0.0 255.255.255.0
ifconfig 10.8.0.1 10.8.0.2
proto tcp-server
port 1194
dev tun
comp-lzo
keepalive 15 60
verb 3

push "route 192.168.1.0 255.255.255.0"
push "dhcp-option DNS 192.168.1.7"

ca /etc/openvpn/easy-rsa/pki/ca.crt
dh /etc/openvpn/easy-rsa/pki/dh2048.pem
cert /etc/openvpn/easy-rsa/pki/issued/server.crt
key /etc/openvpn/easy-rsa/pki/private/server.key

tls-version-min 1.2
tls-auth /etc/openvpn/easy-rsa/pki/ta.key 0
cipher AES-256-CBC
auth SHA256


status-version 2
status status
log /var/log/openvpn.log

Make sure Lines 12 and 13 match your own IP subnet

Hi, i am using a vpn service, so i can't modify the server certificate.
I leave in a residence and here, if i don't use vpn, i can't use the dns i want, so it's possible for me just to change the openVpn config to use just the dns of the vpn service?
Thank you