I used to change antiviruses really often when I was young. Every time new test came I'd be uninstalling already installed antivirus and installing another one, just to test it out. As I grew older, I realized I don't need all that fancy protection modules and I've decided to use the free version of Avast. And I used it for a really long time, more than any other antivirus program. It was simple to use, offered great protection and they basically gained my trust. It was 2017 when I decided to stop using their products because of their bad decisions and reputation they got.
Then, I moved to Emsisoft Anti-Malware. It was and it is still my favorite piece of security software. If my license didn't expire, I'd still be using it today. However, since 2018, I'm using only the Windows Defender because free protection is enough for me. I mean, there was the time when I haven't used any security software yet I haven't got any malware. That being said, free protection is more than enough for me and I really don't see the point in paying for the software that won't have to do any job.