Considering the following configuration, the label of the RadzenFormField component should be loaded as if it were the value of the textbox, and once you focus on the component, the label should float.
<RadzenRow AlignItems="AlignItems.End" Wrap="FlexWrap.Wrap" Gap="1rem" class="rz-p-sm-12">
<RadzenColumn Size="12" SizeMD="6" SizeLG="3">
<RadzenFormField Text="Outlined/Default" Style="width: 100%;">
<Start>
<RadzenIcon Icon="accessibility"></RadzenIcon>
</Start>
<ChildContent>
<RadzenTextBox @bind-Value="@value" Style="width: 100%;" />
</ChildContent>
</RadzenFormField>
</RadzenColumn>
</RadzenRow>
@code {
string value = "";
}
result:
It should be shown like this but with the icon:

