hello guys! recently i discovered this interesting concept which says that in german theres one dominant dialect which is the german standard german out of germany that dominates and discriminates all other dialects of german, such as austrian german and swiss german. im no linguist so i thought i ask some here about your opinion on this topic.
Not a linguist, but a German. As far as I know, this is correct. One dialect has become standard or high German and everything else is considered a dialect.
Swiss German is a completely different beast and here no dialect has become the defacto standard. But German is only one of the four official languages of Switzerland.