I agree, people are too nostalgic about old UIs. But I think modern UIs also invent square wheels, such as invisible scrollbars, too large margins, etc. For example, Windows 7 had the best UI (maybe needed a handful of small additions for year 2026, such as ability to scroll without focus). Later versions of Windows significantly degraded user experience. Windows 11 has somewhat improved look, but it's too bloated and inefficient (that famous desktop context menu opening in 2-3 seconds, jeez).