via wptavern.com => original post link
Gutenberg design contributors are exploring how the template creation UI can be updated to expand the types of templates that user can create using the Site Editor. In WordPress 5.9 users can edit any template that a theme includes, but template creation is limited to a few basics:
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Many of these basic templates are already in use by FSE themes. Users will only see the option to create templates (from this limited list) that their theme hasn’t already introduced. Opening up template creation to the wider world of WordPress theme templates would enable so much more customization.