A default 22.10 installation configures netplan with gateway4 which is reported as deprecated

I just noticed that a standard 22.10 installation produces a netplan yaml like this:

$ cat /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  ethernets:
    enc600:
      addresses:
      - 10.123.123.123/24
      gateway4: 10.123.123.1
      nameservers:
        addresses:
        - 10.123.123.1
  version: 2

But netplan already reports the usage of 'gateway4' as deprecated:

$ sudo netplan apply --dry-run

** (generate:35929): WARNING **: 07:51:52.369: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.662: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.677: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.797: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.797: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.