At the moment, you will be prompted two times to enter the password.
If you create a LUKS-LVM partition with both partitions inside, you have to enter password only once.
If you want you want to install it this way, please read https://forum.endeavouros.com/t/howto-gpt-uefi-install-with-full-disk-encryption-lvmonluks-with-a-separate-home-partition-and-working-hibernation-with-a-swapfile/985