A terminal emulator supports habits that are easy to overlook: keyboard shortcuts, shell integration, copy and paste, Unicode, remote sessions, and readable text for long hours. Use a normal workday to compare an Alacritty replacement, including a full-screen terminal app and a long stream of output.
Check font rendering, latency, scrollback, clipboard behavior, and how configuration moves between machines. If you rely on a multiplexer, test it rather than comparing built-in tabs alone. A new terminal may offer more controls but feel slower in the tasks you perform hundreds of times. Keep the old configuration available until the new workflow is comfortable.
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