I just accidentally clicked the “clear all” on the browser URL and wished that it was a bit harder to click but was still there. If it took three clicks to make happen, its still useful in most circumstances but would drastically drop the mistaken clicks
Anyway, what are your unpopular UI opinions?
Google cranks this up to stupid level by changing the corner radii of active or enabled elements within the same set (e.g. pull-down quick actions on Android)