Advanced-Custom takes some fiddling to figure out how it works, and you also have to be familiar with the Fedora Btrfs layout. So yea, it’s a bit confusing.
The problem is you’ve assigned the btrfs volumes themselves to mountpoints. Don’t do that. Instead, click on the Btrfs volume icon on the left side, and then click + to add a new subvolume, and assign that to a mountpoint. The subvolume name can be whatever you want but the automatic partitioning default is home for /home and root for /
Also missing is a /boot mount point. The installer will allow you to put it on Btrfs, but the default is to put it on ext4.
Last, I notice the Advanced-Custom UI doesn’t permit setting labels for file systems. At least Btrfs you can do it after installation: btrfs filesystem label / yaybutter