On a multilingual site, a few labels stay in English on every language version. A small number of labels are currently hardcoded in English and cannot be translated yet, such as the Show All amenities button and some AI review-summary headings. These are known limitations.
The browser-tab page title and the social-share title currently use the property name in your default language on all language versions. This is also a known limitation. The heading on the page itself translates correctly.