Counterpoint: I can identify which part of the UI most of those come from. This level of variety between various UI functions is actually good. I don’t want the interface tabs or the settings tabs to be confused with tabs in the store, even though they are all tabs. I don’t want buttons to all look the same, especially not the huge purchase button. But even accepting that as an outlier I want some buttons to be clearly part of the steam UI and some as part of the site page I am on, so I don’t get confused.

That is probably a slam dunk (minor) discrimination lawsuit. Your circumstances of birth, including the date, are not something you can be judged for.

Follow up with your ID or Birth certificate and ask “Excuse me?”