I'd mentioned how Wordle clones failed to copy its success because they didn't understand what made it unique before, the article does a decent job too: https://twitter.com/esesci/status/1481734261434507268
I've been playing Quordle, and sometimes it's more insane alternatives [1] [2]. I've also really been enjoying Semantle [3], it's probably one of my favorite and most unique ones. There's other ones that are also need but maybe too much, like Squabble [4] and Squardle [5], but I wouldn't say they've all failed.
Also, to say "the game itself is mediocre at best" seems ridiculous. A mediocre game doesn't get popular purely based on once a day and sharing...