EndeavourOS: installation - decisions: to swap or not !?

• File System - not necessarily BTRFS because i do not have too much experience with BTRFS) and besides i do not work with snapshots
• File System - more likely ext4
• DE; LXQT more likely than Plasma KDE: I really can better work with kde than gnme - but a lightweight DE like LXQT or Xfce fit better on the older Thinkpad x 220 or T430 and T 530,

Hibernation occurs when the state of a running system is frozen, saved, and then the computer is shut down. When the computer is turned on again, the previous state is restored 1:1, including all open windows and running programs.
Other terms are hibernate or suspend-to-disk (roughly: "temporarily interrupting operation by writing the state to the hard disk"). In contrast to suspend-to-RAM, a less deep sleep state, no power is required in hibernation. In principle, the computer can be put into hibernation as described below. This, or waking up later (resume), does not always work, and this article is intended to assist with setting up "hibernate/resume."
The easiest way to set up "hibernate/resume" is with a separate partition for swap[1], and this article is limited to that. However, it can also be done with a swap file. The article Hibernation/Swap File will soon describe the special features to be observed.

Requirements and Preparation
When entering hibernation, the RAM state is written to a swap area[1]. This must exist on a mass storage device (HDD or SSD) and be sufficiently large. A swap area in RAM is not suitable.
All active swap areas are displayed with the command[2]:

systemctl --type swap

The extended command lists all swap areas known to the system (e.g., from the fstab file):

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