Searchable flag does not work on legacy CMS Collection. Our doc explains that when we use this flag, if we search for the collection name, it should return the itens associated to this collection.

• Create a collection on the legacy CMS;
• Use the flag "searchable";
• Check on the front / search result that if we search for the collection name, it will not render the collections itens.

There are 2 workarounds:

• Use a redirect to the collections URL;
• Create a landing page and associate it to the collection search result: https://help.vtex.com/pt/tutorial/como-criar-landing-pages-com-urls-customizadas--q0p2UU6sBaYcEMsq24YSi