Thanks for the feedback!
I use lootlocker for the leaderboard backend with a simple UI component that I wrote. It’s basically just a canvas UI image with a scrollview inside to displays the scores. My canvas is set to scale with screen size and has a reference resolution of 1920x1080 so all the components should stretch accordingly.
I used lootlocker in a previous gamejam and it works pretty well so I do recommend it for small projects like this. I haven’t tested it at any sort of scale so I can’t comment on whether it would be good for larger productions.
Let me know if any of that helped!