LOCALE-ADAPTIVE PAGES

How Google crawls locale-adaptive pages

"If your site has locale-adaptive pages (that is, your site returns different content based on the perceived country or preferred language of the visitor), Google might not crawl, index, or rank all your content for different locales."

(FROM GOOGLE DOCUMENTATION, on How Google crawls locale-adaptive pages

 https://developers.google.com/search/docs/specialty/international/locale-adaptive-pages )