Something I hope to be covered is text reflowing, where you can resize your terminal and have the text flow to the new size. I’ve found it difficult to find a minimal terminal like Terminator which also supports this feature.
Something I can’t ever shake the feeling of, is that iTerm2 for macOS is the best terminal emulator, and consistently innovates and pushes the boundaries on what a terminal emulator can do … but without feeling bloated.
FYI, terminator isn’t really “minimal.” In interface, sure, but it uses the heavy/featureful vte, notably used in gnome-terminal.
Just a heads-up, there’s a few comments on the post itself but a lot of comments on LWN.