It would be nice if the Sortable component allowed the items only initiate dragging when a handle is clicked. This is supported with the Drag & Drop helpers already:
React Common Utilities Library & Drag&Drop Component - Drag Hint - KendoReact Docs & Demos (telerik.com)
Thank you for the submitted feature request. We will be monitoring it closely.
Stay tuned by visiting our public roadmap and feedback portal pages! Or perhaps, if you are new to our Kendo family, check out our getting started resources!