There might be multiple ways to implement this.

Also we should discuss a possibility if this is even worth the implementation or we will rather take this as the "advanced solution" so users can do that manually.

Note from mkolman@redhat.com :

I suggest to start with a brief research task, as the situation is quite different to when we still supported swap regularly & when we dropped auto-creating it.

• does it strictly need a swap partition ? can't modern BTRFS (Workstation) or XFS+LVM perhaps support a swap file without a separate partition ?
• what about the size ?
  • IIRC the swap data can be compressed, so maybe the partition if necessary, could be smaller than RAM size ?
  • can we make sure the partition is only used for hibernation and not for swapping ? that could avoid cases where there is not enough space to hibernate due to the swap being used for... swapping