It's curious to look on at this situation from Linux. Perhaps I shouldn't be too comfortable but it's really a different world. I suppose that one should take care which distribution one uses as that is also an effective entry point for software from the outside but at least a bit more obvious and open than some AV company.
For ages now, Linux has been relatively virus free because let's be honest, Linux is either used by just a few nerds (who are often just a tad harder to trick than the tech illiterate) or by servers, for which entirely different classes of malware exists.
With effectively no antivirus protection, either because of a lack of options or because the outdated mantra that "you don't need it" because of some peculiarities that Apple used for years to deny the existence of macOS malware, Linux users are bound to run into viruses sooner rather than later. Hackers that are after Steam accounts will definitely try their hardest to infect Linux desktop users.
My best hope is that the way Linux distributions are woefully incompatible with each other will protect the hardcore Linux users somewhat from the viruses that will inevitably be spread across the "common" Linux environment. I'm sure we'll see Flatpak/Snap viruses down the line, but for a short while, we'll hopefully still have time to see where the Linux landscape is headed.