layout updating when using push_navigate

The application I’m developing has a background gradient that I noticed flashing between liveviews so I inspected the dom and was surprised to see the layout re-rendered w/ each transition to a new liveview. I’m specifying the :layout and I’ve got a live_session wrapping the liveviews in the router and I’m using push_navigate to navigate between liveview. In the documentation it says live sessions keep the same layout, which it is, but I thought that would mean the layout elements was tracked and not re-rendered without changes to their props. Or am I doing something wrong?

Liveview:

  @impl true
  def handle_event("continue", _, socket) do
    {:noreply, push_navigate(socket, to: ~p"/provider/enter-mrn")}
  end

Router:

  scope "/provider", ProviderWeb do
    pipe_through([:browser])

    live_session :provider,
      layout: {ProviderWeb.Layouts, :provider},
      on_mount: [{ProviderWeb.ProviderHooks, :version}] do
      live("/welcome", WelcomeLive, :index)
      live("/enter-mrn", MRNLive, :index)
      live("/enter-dob", DOBLive, :index)
      live("/orders", OrdersLive, :index)
    end
  end

layout:

<link phx-track-static rel="stylesheet" href={~p"/assets/provider"} />

<ProviderWeb.CoreComponents.header />

<main class="provider">
  <%= @inner_content %>
</main>

<footer class="provider">
  <p>
    version: <%= @version %>
  </p>
</footer>