The TreeList component has almost of all the same functionality as the Data Grid, but it lacks the ability to automatically resize the columns based on the content when clicking the table cell headers. The demo of the Data Grid Column Resizing shows this behaviour. The jQuery TreeList also supports this behaviour.
It would be great if the KendoReact TreeList could also enable auto-resizing of columns in this way as it feels like the natural way to automatically set the size of columns.