Indeed setting z-index is a work around
<Radzen.Blazor.RadzenTabs SelectedIndex="@tabIndex" SelectedIndexChanged="@(args => NewIndexChange(args))">
<Tabs>
@foreach (var i in tabs)
{
<Radzen.Blazor.RadzenTabsItem Text="@($"Tab {i.Text}")">
<Template>
<RadzenButton Style="z-index:2" Click="@AddTab">Add Tab</RadzenButton>
<RadzenButton Style="z-index:2" Click="@RemoveTab">Remove Tab</RadzenButton>
<span style="display: flex; gap: 6px">
@($"Tab {i.Text}")"
</span>
</Template>
</Radzen.Blazor.RadzenTabsItem>
}
</Tabs>
</Radzen.Blazor.RadzenTabs>
Thanks