swap file instead of swap partition

[iconoclasthero]

I did a manual partition and have something like a 150 GB part formatted to linux-swap. I'm looking at the fstab and I still have a swap file instead of it using the swap partition. Is this just a calamares thing?

UUID=-------------------------------- /boot/efi      vfat    defaults   0 2
UUID=-------------------------------- /boot          ext4    discard    0 2
UUID=-------------------------------- /mnt/manjaro   btrfs   defaults,noatime,autodefrag,discard,compress>
UUID=-------------------------------- /mnt/rhino     ext4    discard    0 2
UUID=-------------------------------- /              btrfs   subvol=/@,defaults,noatime,autodefrag,discard>
UUID=-------------------------------- /home          btrfs   subvol=/@home,defaults,noatime,autodefrag,discard>
UUID=-------------------------------- /swap          btrfs   subvol=/@swap,defaults 0 0
UUID=-------------------------------- /home2         btrfs   defaults,noatime,autodefrag,discard,compress>
/swap/swapfile                            swap           swap    defaults   0 0
tmpfs                                     /tmp           tmpfs   defaults,noatime,mode=1777 0 0

Is there a way to make it recognize the swap part automatically? Optionally? Did I miss it in the installer?

Edit: What IS going on here? I just noticed there's a btrfs /swap AND a swap file? And I have a giant swap partition not setup?

There's two swaps and I have /dev/sdb7 unused. Why? Can this be improved?

[iconoclasthero]

Oh also, it wouldn't let me mount my other drive anywhere. That was a bummer. Can you fix it so I can mount /dev/sda to /library if I'm installing on /dev/sdb?