Problem details: Basically, duplicate maps contain a number in parentheses for example (1) to represent a map you already own and (2) referring to a 3rd duplicate. I've recently opened my osu! folder and noticed that there are many duplicate maps which some I downloaded more than 5 times and many containing video files that take up tons of space totaled up. I included some screenshots for reference, but there are many more maps I have and I don't feel like scrolling down tens of thousands of maps.
Video or screenshot showing the problem:
https://imgur.com/a/MGVh650
osu! version: Stable 20230628.2 (latest)
Video or screenshot showing the problem:
https://imgur.com/a/MGVh650
osu! version: Stable 20230628.2 (latest)