While it’s best to create a custom dimension for filtering out bots, applying the generic bot filter is a good place to start. It’s important to note that filters cannot be applied retroactively, so if you’ve recently turned on this feature, you should be receiving less traffic. Additionally, double-check that you are filtering out your own traffic and IP address.
The term “organic traffic” is used for referring to the visitors that land on your website as a result of unpaid (“organic”) search results. Organic traffic is the opposite of paid traffic, which defines the visits generated by paid ads. Visitors who are considered organic find your website after using a search engine like Google or Bing, so they are not “referred” by any other website.