You can try setting the rendermode attribute of those components. It should work in static layouts:
<RadzenNotification @rendermode="@RenderMode.InteractiveServer" />
<RadzenDialog @rendermode="@RenderMode.InteractiveServer" />
Or register all such components in another component which has server/wasm/auto render mode by default.
Yes, there will be issues for sure - multiple tooltips/notifications/dialogs will show. Those components are not meant to be used more than once.