If you have `memo(forwardRef(X))`, then the inner component won't have a "rendered by" list. This is because it technically doesn't have an owner. It is artificial.

I think we should ideally set up `_debugOwner` for these Fibers in DEV just so existing tooling can find them. Or special case them in DevTools.
let mode;
  if (tag === ConcurrentRoot) {
    mode = ConcurrentMode | BlockingMode | StrictMode;
  } else if (tag === BlockingRoot) {
    mode = BlockingMode | StrictMode;
  } else {
    mode = NoMode;
  }
  if (enableProfilerTimer && isDevToolsPresent) {
    
    
     
    mode |= ProfileMode;
  }
  return createFiber(HostRoot, null, null, mode);
}
export function createFiberFromTypeAndProps(
  type: any,  
  key: null | string,
  pendingProps: any,
  owner: null | Fiber,
  mode: TypeOfMode,
  lanes: Lanes,