Problem with the new Viewport Interaction Model

Anyone else who used the new Viewport Interaction Model found the Terrain Tool?
I was trying to find it and even created a layout with the Terrain Tool and the Terrain Layer using the old viewport but when changing to the new viewport the Terrain Tool doesn’t appear.

It’s disabled in the new viewport. Of course, no one tells you this. You have to figure it out for yourself what other things don’t work because Amazon doesn’t care enough about its users to tell them that or to provide even a rough roadmap. They just like to push us the crumbs after developing the things they in particular or their more important “customers” (read: not “users”) want.