Hi Matthew Paul,
Thank you for sharing your suggestion regarding the month or year selection mode for SyncFusion Date input controls. We appreciate your feedback.
We want to inform you that the Syncfusion DatePicker component already supports the month and year view. To help you better understand and implement this feature, we recommend checking the following demo site:
Demo: https://blazor.syncfusion.com/demos/datepicker/month-picker?theme=fluent
In the DatePicker component, you can use the Start and Depth properties to restrict users from navigating to any Calendar view, such as year, month, or decade.
For a more detailed explanation and visual representation, you can watch our video illustration below:

If you have any further questions or if there's anything else we can assist you with, please feel free to let us know.
Regards,
Kokila Poovendran.