ArgoCD exposes its own set of K8s custom resources when installed on a cluster:

 k get crds
NAME                                         CREATED AT
applications.argoproj.io                     2022-08-09T14:24:40Z
applicationsets.argoproj.io                  2022-08-09T14:24:42Z
appprojects.argoproj.io                      2022-08-09T14:24:43Z
argocdextensions.argoproj.io                 2022-08-09T14:24:43Z
...

There is no need to install the argocd cli binary to interact with those. Kubectl is sufficient to visualize most of the information that would be available through the UI:

> k get apps
NAME            SYNC STATUS   HEALTH STATUS
cocoon-bridge   OutOfSync     Healthy
temper-sync     Synced        Healthy
kraken          OutOfSync     Healthy
envr-test       OutOfSync     Healthy

> k describe app cocoon-bridge
Name:         cocoon-bridge
...
Status:
  Conditions:
    Last Transition Time:  2022-11-16T11:22:05Z
    Message:               Any potential error message here
  Health:
    Status:  Healthy
  History:
    Deploy Started At:  2022-11-16T08:36:42Z
    Deployed At:        2022-11-16T08:36:42Z
    Id:                 1242
    Revision:           2844a3f7bfc264dffb0921e8b95350bf606de811
    Deploy Started At:  2022-11-16T09:54:52Z
    Deployed At:        2022-11-16T09:54:53Z
    Id:                 1243
  Reconciled At:          2022-11-16T12:00:39Z
  Sync:
    ...
    Status:               OutOfSync
Events:
...

You can also patch directly the application custom resource to change its parameters. Useful if you want to set an app to manual sync temporarily:

> k patch app cocoon-bridge --type merge --patch '{"spec": {"syncPolicy": null}}'
application.argoproj.io/cocoon-bridge patched