Does Clamav come with Zorin OS Core by default?

I've read some many time how safe Linux is but I keep seeing stories like this. I have ClamAV (free) but that doesn't provide real time protection like say "cough" Windows Defender (also free). Don't get me wrong I'm not hating on Linux just pointing out that the good old days of Linux flying under the radar are fading fast and when Windows 10 reaches EOL it's likely to get worse as people switch. There needs to be a better free option cause I'm not using a 12 yr old Optiplex cause I'm loaded.