Sometime it's a question asked by people "What's the best antivirus product?" or "Do I need to install any 3rd party antivirus product on Windows 10?" etc. Ok, to answer this query, you must understand how much security you actually need.
In this post, I am going to answer this. Also, sharing some Microsoft recommended 3rd party good products which you can run (not mandatorily) as a primary antivirus software.