I'm testing the terminal app of #COSMIC Desktop, and I find it very appealing:
https://github.com/pop-os/cosmic-term
cosmic-term is based on Alacritty, a modern and feature-rich terminal emulator which would be perfect if only it supported splits.
And guess what? cosmic-term adds horizontal and vertical splits!
Of course, cosmic-term can run in other desktops too. I'm using it with #KDE #Plasma.