A third party client for osu! currently in development and needs testers, it is currently stable but I need user input on what else is needed and to find bugs, If you're interested join the discord and check the new-releases channel https://discord.gg/S46VwpjFpG
https://github.com/DiekoMA/OsuLauncher
https://github.com/DiekoMA/OsuLauncher