I really do not get the obsession with translation, particularly bad translations and translating by default. Most people who browse websites in languages other than the official local one are fluent in that other language.
Google Chrome keeps insisting that Spanish is Galician. PowerPoint insists on changing the spell checker back to the wrong language and ignores setting the language for the whole presentation. On Linux, ChatGPT insists it must enable the spell checker in the local system language, so everything is always red.
Privacy aside, a lot of software seems to be built assuming people cannot be multilingual.
Both are true, a lot of people are multilingual but a lot are also not.
I know a lot of foreigner for which the feature is really useful (local department store, booking a doctor appointment etc.)
I don't know many people, but I do know someone that relies on machine translation to browse the English web. Remember "most" is not "all." The web should be accessible to every single person.