SDKBrowserMaui application, change PopupStyling.xaml and see that text changes are not reflected in the control.

For example, changing it to:

            <Style TargetType="Button" x:Key="cancelButtonStyle">
                <Setter Property="BackgroundColor" Value="Transparent"/>
                <Setter Property="Text" Value="bob"/>
                <Setter Property="TextColor" Value="#1188FF"/>
            </Style>

Text is not applied. It affects all pickers.

Workaround: 

Set Accept and Cancel Button text properties to the pickers: 

<telerikInput:RadDatePicker >
            <telerikInput:RadDatePicker.SelectorSettings>
                <telerikInput:PickerPopupSelectorSettings 
                                                          HeaderLabelText="Date Picker"
                                                          AcceptButtonText="Yes"
                                                          CancelButtonText="X"/>
            </telerikInput:RadDatePicker.SelectorSettings>
        </telerikInput:RadDatePicker>