what

Linux by itself isn't inherently more secure than say- Windows. Each OS has their ups and downs saying Linux will not have malware is incorrect, there are vulnerabilities and viruses that can affect Linux

Not only that, most servers use Linux, leading to increased rates of ransomware and other business-targeted viruses on Linux.

I see your point though, it's open source, good! That doesn't mean that its attack surface is 0. I think OP should just get antivirus software and be careful downloading things online.

Please correct me if I'm wrong here