They are vague. They are umbrella terms that could potentially cover everything from A-Z, from features I would never touch to perhaps something I use every day. The terms, in and of themselves are hollow and a cheap way to promote something. They also aren't tangible unless I'm getting infected and my computer compromised on a regular basis.

if you use Linux correctly there is no real way you should get a virus.

If you use Windows correctly, there is no real way you should get a virus. I've been using Windows for years and don't recall ever having my computer compromised, nor getting virus or malware I didn't put there myself. Why? Because common sense and not downloading every piece of dodgy software I can find.

Yes, Linux can potentially be a safer solution, especially for the less tech-savvy as Windows can easily be a magnet for all that junk flying around. However, let's not pretend that just happens when casually browsing Reddit or whenever you dare do anything on your computer. That seems to be where the argument gravitates towards often, which is nonsense.

Stability is quite possibly even more vague, as an operating system that is ten times as common, supports ten times the software, the games, the peripherals, is bound to have more potential sources of instability. It also promotes the train of thought that Windows just crashes, on its own, when it feels like it. I haven't seen a BSOD in years and years, only driver crashes I've experienced since Windows 7 are Nvidia related, which just results in them recovering and the OS keeps on truckin'.

They are vague terms that just plays the tune of "Oh Windows is super unsafe and it'll crash constantly. Switch to Linux!" - Well, if my Windows isn't compromised or infected, nor does it crash, then those two aren't tangible reasons are they.