old hat

Example: “Video calls seemed amazing once, but now they're old hat.”

Origin: On record since 1697, in the writing of the playwright Thomas D'Urfey, though at that early date the phrase carried a considerably cruder meaning entirely unrelated to fashion or novelty. The now-familiar sense of something tediously outdated or overly familiar developed separately in the early 1900s, drawing on the plain, literal image of a genuinely worn, battered felt hat, softened and shapeless from years of continuous use — a visibly tired, unremarkable object rather than anything shocking. The Oxford English Dictionary also notes a possible parallel in German alter Hut, literally "old hat," used the same way for something familiar to the point of being a cliché, though whether the two expressions influenced each other or simply arrived at the same image independently isn't established.