Can't see "home" partition in "other locations"

I am a new user in Ubuntu, with a windows background. I have a 500 GB HDD on my old laptop and I made a partition sized around 50 GB for the system use, and another one ~ 410 GB for my personal use. The mount point for the 410 GB one is set to /home, because I could not install the system without a mount point and I read that /home is somewhat of a default.

However, when I install the system the only partition I see in nautilus is this one:

But when I open GParted:

Am I doing something wrong? Is the 410 GB one not used, though it is listed in GParted, and how can I use it?

I wont exclude the possibility of me lacking knowledge because this is my first time using Ubuntu. Maybe it's here and it is active, but I don't know how to access it and store my files on it?

Thanks and sorry!