I run GKE clusters in europe-west2. Completely unaffected. I run on the latest k8s version. I have an uptime monitoring service which runs in AWS and it reports zero downtime over the last 24 hours.
We're using their "stable" release channel which means most of our clusters are currently on a version of 1.25. We only have a few deployments using PVCs so impact is pretty minimal anyways for us as far as I can tell.