Main reason would be "why not?" windows is also working great for most common use cases. Actually there is not much difference nowadays between OSes. Another reason would be specific software like Excel. Why would you switch your OS adlnd most of the software you use if you don't gain much from it.
I've a Linux OS for coding, OSX for work and Windows for gaming. There are absolutely no problems with any of them. Windows worked great last 4 years, no virusesor performance issues without anti-virus or tweaking. Linux drivers needed work at the start but now there is no issues, Mac is similar. Only issue is when I try to code with Windows it feels annoying but it is mostly because I'm doing things with CLI where I should have used GUI.
El means "the" as far as I know. As he is "the one" and it is not part of the name, it is the title, basically it is not "a(ny) god" its "the god". At least it was explained so to me from my bro, who "speaks" the old Hebrew. But I don't know why it is the discussion here. Isn't there better places to discuss etymology where there are people who speak the language?