Question regarding rancher HA install and RKE vs. Rancher

I’m trying to understand something about a 2.2.2 cluster I stood up awhile ago, and finally able to work on again. This is a brand new setup I did early last year.

So, the steps are first to stand up an RKE HA cluster, and then use helm to deploy Rancher into there. But, when I login to Rancher, I see that the Rancher Management cluster is listed as imported.

Is that how it is supposed to work? Can etcd be installed as pods or should it run locally on the boxes? Does this mean we need to manage the RKE cluster housing Rancher separately from the clusters we deploy natively from the Rancher UI?

Thank you.