How did you setup your powershell to run the kubectl ?

If you’re using Docker Desktop for Windows, you need to enable Kubernetes first. Right click on the Docker Desktop icon in the tray, go to Settings, then the Kubernetes tab and then tick the enable box to install Kubernetes.

projectid=""  
zone="europe-west2-a"  
region="europe-west2"  
cluster01=""  
serviceaccount="api-service-account"  
function_update_gcloud () {  
gcloud config set compute/region $region  
gcloud config set compute/zone $zone  
gcloud config set project $projectid  
}  
function_Create_cluster () {  
echo " build GKE cluster"  
gcloud container clusters create $cluster01   
--num-nodes 2   
--machine-type n1-standard-2   
--scopes "https://www.googleapis.com/auth/projecthosting,cloud-platform"  
gcloud container clusters get-credentials   
$cluster01 --zone $zone --project $projectid  
}  
function_bind_gcloud_as_Admin () {  
ACCOUNT=$(gcloud info --format='value(config.account)')  
kubectl create clusterrolebinding owner-cluster-admin-binding   
--clusterrole cluster-admin   
--user $ACCOUNT  
}

fill in the variables at the top

also run this to check its up

kubectl get svc

and i also recommend you curl the APIs