Manjaro newbie, but reasonably Linux-experienced in general. I'm in disguise here (no offense) because I'm a registered KDE developer. I'm on self-imposed hiatus from bug-fixing - although some of my code is in your Plasma 5.14 and your more recent applications. Just taking a break to explore outside the familiar regions.
So I've got Manjaro set up (with KDE as the base) and running nicely. I even got my hybrid Intel/NVIDIA card to finally run in NVIDIA-accelerated mode for the first time. Yay Manjaro and good documentation & excellent forum posts. Is this necessary? No, but the anti-aliasing is excellent and my pointless but beloved window effects are smoother than ever.
I'm running LightDM with the WebKit2 greeter. I already submitted a minor patch to the maintainer of the sharpest greeter theme I've seen - Litarvan. Really attractive and impressive. (I just corrected some minor grammar.)
In addition to KDE, I've got Pantheon/Elementary and Deepin installed - just to play with. I haven't gotten around to installing i3 yet, but I'm looking forward to it. I've poked at it a little bit a while ago, but nothing serious.
I'm a greybeard, having done "this" since I was a kid. I haven't always worked in the field and don't work now, so I have this laptop covered with stickers that I'm continually tinkering with (hence the multiple DE experiments).
I'm in Chicago, the best city in the country, and one of the top (x <= 5) in the world. We have the best pizza and the best hot dogs; this is not debatable. We used to have the tallest building, but lost that more than 10 years ago. And now we've got an ugly new skyscraper with "that guy"'s name on it in big gold letters. Enough said about that.
I've been a Unix/Linux/etc user since the days of a dial-up shell account. I remember gopher and lynx. I remember Netscape 0.9. But then there's a big gap, and now I know Python and am learning C++, with a side of crafty shell scripting to keep myself entertained.
That's me. Glad to be here. Now I have go to post my "newbie" question...