it should be rke2.yaml... for example:

kubectl --kubeconfig=/etc/rancher/rke2/rke2.yaml get no

If that works then: you can copy that to ~/.kube/config

cp /etc/rancher/rke2/rke2.yaml ~/.kube/config

Now, you can simply run

kubectl

without specifying

--kubeconfig

option yes that (.kube) is a hidden dir in your user's home dir and filename is just config

okay - nevermind I see you also posted in k3s channel and getting help from there