> I find the English usage of “Angst” really confusing, as it really just means anxiety or anxious.
USA: While angst and anxiety come from similar roots, angst is not just anxiety but a dread or anguish. Often angst is focused in a certain way, such as towards a particular condition one person has or a group of people have. Anxiety is more general.
There may also be differences between the two words in certain fields, such as with professional definitions.
There are also other derivative uses, such as teenage angst, that are more akin to feeling overwhelmed but not necessarily anxious.