kitty vs Extraterm

Very elegant keyboard shortcuts for creating and navigating between tiled terminals within each tab with no appreciable lag.

Supports plugins to add features one at a time for those who need them. Examples include Unicode input and side-by-side diffs.

Operate several terminals from one window using the tabs feature, allowing you to make simultaneous connections to different remote hosts.

Allows for viewing the scrollback buffer in an external pager of your choice ('less' by default, with support for 'more' and 'most'), a huge benefit for turning actions taken in a live terminal session into a script for efficiency or dissemination or collaborating on workflows.

No graphical menus to clutter the screen saves system resources and time once you learn that all those options are still available from the command line within the app.

not the fastest ever, but for me its a good comprimise of features vs performance

You can set up your own layout with multiple splits and tabs.

The shell integration makes it possible to group in command output in "frames" which show success/failure.

You can view images and other data types like audio directly in the terminal.

It is possible to go into a cursor mode where you can select text just like in a text editor. It even supports multiple cursors.

You can configure global shortcuts to open the terminal.

Just like Sublime, Atom and VSCode you can easily search and find commands from the drop down Command Palette.