Our health check checks against githubstatus.com to verify 'why' there may be a GHA failure and reports it, e.g.
Cannot run: repo clone failed — GitHub is reporting issues (Partial System Outage: 'Incident with Copilot and Actions'). No cached manifests available.
But, if it's not updated, we get more generic responses. Are there better ways that you all employ (other than to not use GHA, you silly haters :-))