It's shocking how incompetent youtube is. eg a (presumably reasonable?) use case: watching a video, posted more than a year ago, and you want to see the either

It's shocking how incompetent youtube is. eg a (presumably reasonable?) use case: watching a video, posted more than a year ago, and you want to see the either (1) immediately previously posted; or (2) immediately next posted video. Because they are part of a series, or mention each other. It's extremely difficult to do.