https://guidebookgallery.org/screenshots/qnx621
I honestly think anything else produced since is worse than this, and since flat design has taken root, UIs have fallen off a cliff both in usability and style.
I tend to get very Patrick Bateman-like when appreciating old UIs, the colour combination and choice of fonts on off-grey backgrounds, while modern interfaces just feel like there's no personality or warmth to them. Just flat uppercase #222 sans text on flat white background.