Don’t use apostrophes wherever you see an “s” at the end of a word. If you’re unsure about whether or not to use an apostrophe, just don’t. Because statistically, there are far fewer cases where you need 'em than there are cases where you don’t. Plus if you missed the apostrophe where it should be, people will just assume you didn’t bother to type it or it was a typo. Whereas if you do type it where it shouldn’t be, it’s a clear case of “this person doesn’t know how apostrophes work”.
This applies to pretty much all “Linux good, Win/MacOS bad” memes. I just assume that people either aren’t really serious about them and it’s just tongue in cheek, or they don’t have any contact with regular people.
I used to work as a(n assistant to the) sysadmin and the things I got called over never stopped to amaze. For instance, there was a case when software was updated on the work machines and I got called because some lady couldn’t use Adobe Acrobat. “It is asking me something, I don’t know what”. I come over and it’s just a TOS Accept/Decline window.
Some people do not understand computers to an extent that they can lock up in a state of confusion when a button has been moved 100px in any direction from its usual position.