The dolphin file manager has an integrated terminal that automatically changes folder to match the one you've browsed to.
There's a ton of these small useful things that a light desktop like XFCE or LXDE wouldn't implement but are still useful.
How you should approach this is to use KDE, then if you wonder ,"hi would be nice if I could put the notifications on left side since my right eye is bad -> then you go and find the option and move the notifications ,
Installing KDE and trolling to all options is a insane thing to do, do you also install Firefox and go into about:config and set all this options as you prefer ? Or you use Ff then ask , hey would be cool if Ff won't do this annoying thing , then you search the option and hope to find it
I'd recommend you to try KDE again. I run Arch Linux and KDE in my main work computer and I find the default config is awesome, there's no need to tweak anything, and it runs real fast (on the other hand I remember Kubuntu being slow). Of course, there are lots of advanced config settings, but there's no need to dig in. The default config is perfectly usable. Plus, the apps suite is where KDE really shines.
Plasma is great by the way. I think KDE's general busy look and poor performance over the years have really hurt its reputation - I tried it on a fast machine a few years back and it was just confusing and slow. But right now, in 2018, Plasma is easily the best desktop environment for ergonomics, features, and polish. It's really amazing what they've done with it. I encourage anyone who's written off KDE, like I did for many years, to give it another shot.