It would be nice if the Telerik Blazor team could add "Icon" and "IconClass" parameters to the TextBox control, similar to how the TreeListSearchBox control works, which would allow displaying an icon inside the TextBox control:

The kludge specified in this article does not seem to work anymore, and is also not maintainable, since it requires hacking into the implementation details of the TextBox control: How to add icon to the textbox | Telerik UI for Blazor. This should be abstracted by the TextBox control by adding "Icon" and "IconClass" parameters, like many other Telerik Blazor controls have (e.g., buttons: Blazor Button - Icon | Telerik UI for Blazor).