If you need a UI over SSH or inside tmux, skipping browsers and CSS isn't just a novelty, it's essential since HTML can't touch that territory. TS-based layout in terminals can be ugly but it also dodges a pile of accessibility, latency and bloat issues you get by default with anything running in Chrome.

k9s, ncdu, htop, powertop are good showcases how a TUI reduces mental load and are superior to browsers and / or other GUI tools