Do Backlinks to One Language Version of a Site Boost the Other Language's Rankings?

Do Backlinks to One Language Version of a Site Boost the Other Language's Rankings? I'm working on a dual-language website (English + Thai) in the travel niche, and I have a question about how Google treats backlinks across different language versions. The site has: * English pages targeting "Best Travel Deals Thailand" * Thai pages targeting the local equivalent keyword Since it's much easier to get backlinks from Thai-language websites, I've been focusing on link-building for the Thai version of the site. However, my main goal is to rank the English version for searches like "Best Travel Deals Thailand" in English. My question: * Will the backlinks to the Thai version indirectly help the English version rank? * Since it's the same domain, does link equity flow between the language versions? * Should I internally link the Thai pages to the English pages to pass authority? Would love to hear from anyone who has tested this or seen case studies on it. Thanks in advance.