DNS problem after connecting VPN

I am using a VPN to connect to the company's private network. After connecting to the VPN, my primary DNS changes to the private DNS. This causes an issue with accessing the web. When I ping google.com, I receive an error, but when I ping 4.2.2.4, it responds. However, I can successfully ping the private network DNS.

The private network's range is 192.168.8.0/24, and the DNS server is lab-windows.nsx.local.

 % scutil --dns   
DNS configuration


resolver #1
  search domain[0] : google.com
  nameserver[0] : 192.168.8.2
  flags    : Supplemental, Request A records
  reach    : 0x00000003 (Reachable,Transient Connection)
  order    : 100000


resolver #2
  nameserver[0] : 8.8.8.8
  flags    : Request A records
  reach    : 0x00000002 (Reachable)
  order    : 200000


resolver #3
  domain   : local
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300000


resolver #4
  domain   : 254.169.in-addr.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300200


resolver #5
  domain   : 8.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300400


resolver #6
  domain   : 9.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300600


resolver #7
  domain   : a.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300800


resolver #8
  domain   : b.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 301000


DNS configuration (for scoped queries)


resolver #1
  search domain[0] : google.com
  nameserver[0] : 8.8.8.8
  if_index : 12 (en0)
  flags    : Scoped, Request A records
  reach    : 0x00000002 (Reachable)


resolver #2
  search domain[0] : lab-windows.nsx.local
  nameserver[0] : 192.168.8.2
  if_index : 20 (ppp0)
  flags    : Scoped, Request A records
  reach    : 0x00000003 (Reachable,Transient Connection)

% ping 4.2.2.4
64 bytes from 4.2.2.4: icmp_seq=0 ttl=56 time=36.773 ms

% ping google.com
ping: cannot resolve google.com: Unknown host

% ping lab-windows.nsx.local
64 bytes from 192.168.8.2: icmp_seq=0 ttl=127 time=86.280 ms

% dig google.com


; <<>> DiG 9.10.6 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 26005
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1


;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;google.com.			IN	A


;; Query time: 1378 msec
;; SERVER: 192.168.8.2#53(192.168.8.2)
;; WHEN: Thu Jul 20 11:14:43 EEST 2023
;; MSG SIZE  rcvd: 39