In German speaking parts of Switzerland people speak Swiss German.
The official and written language is high German.
Although loosely related, they are two different languages.
Although loosely related, they are two different languages.
Edit: these dialect are commonly used in court, public offices, and often on TV. They have a vastly stronger role in public life than in other German-speaking countries.
I think my point stands that it's a distinct language from the official one. It definitely feels like that in practice where a lot swiss people feel like they have to wear their official hat when speaking regular German and they prefer to have casual beer conversation in English rather than high German.