When trying out the Material-UI basic example for Tree View (@mui/lab/TreeView), I do not know how to remove the horizontal scrollbar when using the overflowY: "auto" (The same effect even if I use overflow: "auto") option in the sx prop of the TreeView component. The horizontal scrollbar appears no matter how much space is available to the right. I want to keep the overflowY option in case of vertical overflow.
For example please see the basic tree view example from the official Material-UI page in StackBlitz or CodeSandbox.
How to remove the horizontal scrollbar when it's not needed?