This has taken me 34 years to finally get right!
My path to termit (OK, a crap name):
So, why would I ever stray from konsole?
I started a discussion with the really cool guys at i3wm and a number of candidates came up including several that were new to me such as lilyterm and termit.
termit just sails past all of the problems with konsole (although the configuration took me a week to get just right). And sensibly, it can map C-Tab and C-S-Tab to next/prev tab - something gnome-terminal, xfce-term, lxterminal etc just cannot do.
Here's my config (put it into ~/.config/lilyterm/default.conf):
For the record I tried heaps including: gnome-terminal tilda lxterminal xfce4-terminal termit sakura roxterm others … ?
Also see this ancient 2004 article which really needs an update: The Grumpy Editor's guide to terminal emulators - https://lwn.net/Articles/88161/