Is linux not secure? The main takeaway here is that packet managers can have malicous apps uploaded there since some of them are not regulated. Also on mint every app can see what other apps are doing which is not ideal for privacy/security. This is why I tried parrot os, too bad WIFI and sound do not work by default which is frustrating, im sure that you could fix it after looking at multiple guides online. I wonder if you could just harden the distro which you are currently using by installing some software.