Reproduction steps:
1. Create a new project
2. Open New Scene window (File > New Scene)
3. Select Indoors (URP) or Outdoors (URP) Scenes and click “Create” button
4. File > Save As Scene Template…
5. Observe the Console

Actual result: “Lighting data asset ‘LightingData’ is incompatible with the current Unity version…” warnings are thrown
Expected result: No errors or warnings are thrown

Reproducible with: 6000.0.61f1, 6000.2.10f1, 6000.3.0b8, 6000.4.0a3
Couldn’t reproduce with: 2022.3.68f1 (No Indoors (URP) or Outdoors (URP) Scenes)

Reproduced on: Windows 11, macOS Sequoia 15.4 (M4)

Note:
Full warnings:
{code:java}
[Worker1] Lighting data asset ‘LightingData’ is incompatible with the current Unity version because the scene it was baked for was not serialized. Please use Generate Lighting to rebuild the lighting data, or assign the target scene to the Lighting Data Asset in the inspector.
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
{code}
 
{code:java}
[Worker1] Lighting data asset ‘LightingData’ is incompatible with the current Unity version because the scene it was baked for was not serialized. Please use Generate Lighting to rebuild the lighting data, or assign the target scene to the Lighting Data Asset in the inspector.{code}
Slightly different warning on macOS:
{code:java}
[Worker0] Lighting data asset ‘LightingData’ is incompatible with the current Unity version because the scene it was baked for was not serialized. Please use Generate Lighting to rebuild the lighting data, or assign the target scene to the Lighting Data Asset in the inspector.
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()
{code}