Istio has been recently activated on the Google Kubernetes Engine cluster we are using. However we don't know who of our team did it.
Is there a way to find out who activated which features on our Google Kuberentes Engine respectively on the Google Cloud Platform in general?
You might want to check the "Activity" tab within GCP Console. It register all the actions that have been made in the project. Also, you can take a look at Stackdriver Logging and check the Cluster activity logs, it will show you the user that executed the Istio activation.