Just an info, is hard to make an online leaderboard like yours in Unity? I've make a tetris-clone and I feel like I should add it
My bad for the late reply - somehow I didnt notice your comment earlier :c
Honestly the video below made adding an online leaderboard even easier than an offline one. Depending on your programming skill its also fairly easy to break the script up into different parts, which makes it super super flexible. If you do decide to give it a try, and run into any issues, feel free to message me on discord - O4FoxSake#6963! Id be happy to help you figure things out :)
(Also it looks like that highscore of yours from your first comment was actually knocked completely off the leaderboard! Let me know if you decide to make another push for first place lol)