One of the first things I like to do with KDE now is turn off the stupid Offline updates setting. Seriously KDE devs, this isn't Windows, I don't want or need to have updates run on shutdown! Linux doesn't need to reboot for most updates! I also switched to Breeze Dark theme, and moved the panel to the top, disabling the new floating panel setting. That's what I like about KDE, everything is configurable, unlike Gnome where they have a like it or lump methodology. And the search feature in Settings works very well. Also I discovered that my Dell Vostro has a back-lit keyboard, I accidentally hit the Fn keyboard shortcut to turn it on!
I also installed all the usual items such as GIMP, Audacious music player, Filezilla, Cantata (mpd front-end) Yakuake (a drop down terminal) and Kubuntu-restricted-extras. In general this fresh install has gone very smoothly compared to an upgrade, though I did have a slight issue with menus not popping up from the system tray, Switching from Wayland to X11 at the login screen sorted that out. Another little tweak I do is re-enabling the Leave option in the desktop right-click menu. So, other than that slight issue, this fresh install has gone very smoothly, and I'll likely keep KDE Neon on this laptop until the hardware dies whenever that might be, this Vostro is a tough old thing.