A casual YouTube user has absolutely no reason to read this further. Furthermore, I bet that consecrated creators already know about Youtube Studio and are already using it. If you're somewhere in the middle, understand that the app name is partially misleading. Youtube Studio carries no feature to upload or edit videos. It is not a creative platform.
What you can do, however, is better engage with your viewership. You can check the latest comments on each video entry, and you can respond and react to each one. Furthermore, you can edit video thumbnails, their description, and monetisation options.
You also get a ton of analytics readings. Besides general view stats, you can check the source of your views, the audience's age breakdown, and engagement rates.
- Channel and Video analytics data
- Possibility to review and respond to comments
- Notifications on strikes and other PC culture derived kvetches
- Playlist management
If you intend to become a YouTube uploader, then using Youtube Studio is perfect for keeping track of your channel 24/7. Being an internal tool linked to the YouTube platform, there's no other option anyway.