Greasy Fork

As the name suggests, replaces Your videos with Favorites.

Usage:

1. Go to your Favorites playlist on Youtube and copy the URL
2. Install the script to Tampermonkey
3. Click on the Tampermonkey extension icon and open the Dashboard
4. Find the Return YouTube Favorites script in the Installed Userscripts tab and click Edit on the right side of the screen
5. Insert your link to Favorites into the link variable. It should look something like this: var link = 'https://www.youtube.com/blablabla'
6. If your language isn't supported by the script, change the oldTitle and newTitle variables to your language equivalent of Your videos and Favorites

Your link will be reset every time the script updates, so I'll keep them sparse. More native language support will come if needed.

I know it's a jank way of doing this, but without UI there's not much you can do. Unfortunately all Favorites links are unique, so I can't make it the same for everyone, nor can I grab it from the Home screen. So manual insertion it is!