They solve different problems, and they are not mutually exclusive
| Route | Best for | Effort | What you get | Limits |
|---|---|---|---|---|
| Adoption site gallery | Inspiration and stakeholder conversations | Minutes | Design examples with the web parts and features listed | No deployment, no branding, small and infrequently refreshed |
| Built-in SharePoint gallery | Individual pages and news posts | Minutes | Microsoft page templates plus your own saved templates, inside the authoring flow | Page-level, not whole-intranet; limited branding control |
| PnP community templates | Whole site structures | Hours, plus PowerShell skills | Full site provisioning including structure, navigation and sample content | Requires admin access and scripting; community-maintained, not supported by Microsoft |