When setting ToolTipProperties.Text of a ButtonToolbarItem to a something other than an empty string, the associated command is never executed.
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage
x:Class="Toolbar.MainPage"
xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:Toolbar"
xmlns:telerik="http://schemas.telerik.com/2022/xaml/maui"
x:DataType="local:MainPageViewModel">
<ContentPage.Resources>
<ResourceDictionary>
<Style
x:Key="ActionMenuButtonToolbarItemViewBaseStyle"
ApplyToDerivedTypes="True"
TargetType="telerik:ButtonToolbarItemView">
<Setter Property="DisplayOptions" Value="Text" />
<Setter Property="TextColor" Value="White" />
<Setter Property="FontFamily" Value="{x:Static telerik:TelerikFont.Name}" />
<Setter Property="FontSize" Value="16" />
<Setter Property="ToolTipProperties.Text" Value="click to change count" />
</Style>
</ResourceDictionary>
</ContentPage.Resources>
<ScrollView>
<VerticalStackLayout Padding="30,0" Spacing="25">
<telerik:RadToolbar x:Name="toolbarButtons" AutomationId="toolbarButtons">
<telerik:ButtonToolbarItem
Command="{Binding ButtonClickedCommand}"
Style="{StaticResource ActionMenuButtonToolbarItemViewBaseStyle}"
Text="{x:Static telerik:TelerikFont.IconUpOpen}" />
</telerik:RadToolbar>
</VerticalStackLayout>
</ScrollView>
</ContentPage>