In general, your question is not specific to the usage of Telerik MAUI and Telerik Blazor controls. The question is a general questions how to use Blazor controls and MAUI controls in Blazor Hybrid app. You can check the MAUI and Blazor forums, community, etc. The Telerik MAUI controls are developed to be used in a .NET MAUI applications and all apps that are build on a .NET MAUI framework. The Telerik Blazor controls are developed to be used in a Blazor apps and all apps that support Blazor. So the MAUI Blazor Hybrid apps allows you to use Blazor components in a MAUI app.
Hope the attached app will be of help. I have left comments in the MainPage.xaml file.