The content editor offers template creation and editing options, but these workflows are less polished than the site editor approach. The template editing mode lacks features like the styles sidebar and comprehensive site management.
Avoid creating new templates from the content editor – the interface dates back to WordPress 5.8 and produces awkward templates without proper structure like headers and footers. Always use the site editor for template creation.
Editing existing templates from the content editor is acceptable for quick adjustments, but the site editor provides a more complete and capable environment for comprehensive template work.
The content editor’s template features serve as quick access tools rather than primary development interfaces – stick with the site editor for serious template development work.