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Nope, not needed, unless you are changing the language. Now, if you wanted to do one big site and then offer certain pages that are the same except for "translation" - and it's a local dialect translation, then yes, HREFLANG would be used in that situation. So you could use HREFLANG rather than a canonical between the kinda duplicated pages if they are changed only in dialect translation. But since there is different content per country, you would still need that geo-targeted section for the content that is different. domain.com/congo/about-congo-office (I don't know the country code for Congo) - No hreflang, will be geo-targeted with the subfolder. domain.com/congo/similar-product-page - If just translated to the local Congo English dialect, use HREFLANG with all similarly "translated" pages. If not changed at all, use canonical to the original page. If changed overall to target the Congo market, no canonical or HREFLANG needed.