I disagree, stuff today is un-boring
mostly in a bad way: Is this a link or a button? Is that a checkbox or an option box? Where'd my scrollbar go? Is this two-state control already on or off? Is this row of text labels a bunch of tabs, or a bunch of new panels? What zones are right-clickable, and does right-click even work? Will this website hijack key combos used by my browser? Does this app even
have key combos, and why can't I discover them by looking for an underlined letter? Is there a cheatsheet somewhere? ...
In contrast, a lot of classic 1990-2010 stuff was stable and boring because it had reached a point of working well and the visual indicators were consistent.
Now it's more like "pandering to the lowest common denominator of a touchscreen interface, and doing it badly", or "sacrificing good UX in the name of looking different".