Please note that as of the end of next week (Nov. 12), the Vienna government has announced that the 2G rule (vaccinated or recovered) will be imposed on bars, restaurants, events for more than 25 people and close contact services, such as hairdressers. This means that those holding only a negative test will no longer be able to visit these listed places.
As far as I can read, shops, hotels, museums and public transportation are not affected by this new rule.