Description of problem:
I have two freshly installed test VMs, all defaults Server Minimal install of RHEL 8.8 and RHEL 9.2, then all updates applied and VMs rebooted.

This is their network configuration:

# grep -v ^# /etc/NetworkManager/NetworkManager.conf | grep -v ^$
[main]
plugins=keyfile
[logging]
# cat /etc/NetworkManager/system-connections/enp1s0.nmconnection
[connection]
id=enp1s0
uuid=ea4d1672-de2e-3b87-a234-5f861e452d77
type=ethernet
interface-name=enp1s0

[ethernet]

[ipv4]
address1=192.168.122.221/24,192.168.122.1
dns=192.168.1.1;
dns-options=edns0;no-aaaa;trust-ad;
dns-search=example.com;
method=manual

[ipv6]
method=disabled

[proxy]

Running a playbook on a RHEL 9 control host with:

  vars:
    network_state:
      dns-resolver:
        config:
          server:
            - 192.168.1.1
            - 127.0.0.1
          search:
            - example.com
            - domain.name
  roles:
    - redhat.rhel_system_roles.network

I see that configuration was changed for both managed VMs and on RHEL 8 the result looks like this:

[ipv4]
address1=192.168.122.170/24
dhcp-client-id=mac
dns=192.168.1.1;127.0.0.1;
dns-options=edns0;no-aaaa;trust-ad;
dns-priority=40
dns-search=example.com;domain.name;
method=manual
route1=0.0.0.0/0,192.168.122.1,100
route1_options=table=254

However on RHEL 9 the result is:

[ipv4]
address1=192.168.122.221/24
dns=192.168.1.1;127.0.0.1;
dns-options=edns0;no-aaaa;trust-ad;
dns-priority=40
dns-search=example.com;domain.name;
method=manual

Version-Release number of selected component (if applicable):
ansible-core-2.14.2-4.el9.x86_64
rhel-system-roles-1.21.1-1.el9_2.noarch