For the case of KLV-Airedale and indeed all of the current KL distro varieties (i.e. Void Linux based, Ubuntu based, and Arch Linux based):
The current KL distros have been specially designed to allow save persistence (save folder or save file) to work without effort (aside from partition labels) for all of Ventoy, SG2D, Qemu, and normal frugal install. No boot-time user intervention or actions are required. It just works. Two mechanisms are provided out of the box:
Method 1 (Label only required on the partition you want save persistence on): All of Ventoy, SG2D, and Qemu can use save persistence to any partition anywhere on your system (e.g. on hard drive or usb stick) that has been labelled Persistence and puts it in (auto-created) directory Sessions. For this mode, neither the Ventoy, SG2D, nor Qemu partition needs any label.
Method 2 (Label Ventoy, or SG2D, or Qemu required): Ventoy can also put save persistence onto its own bootfrom media as long as the Ventoy main data disk is Linux formatted and given label 'Ventoy' (savefolders get automatically stored there into a directory auto-named Sessions - no user interaction required at all).
Similarly for SG2D, but the SG2D data disk needs to be Linux formatted and given label 'SG2D'
and similarly for QEMU, qcow2 hard disk image, which needs to be Linux formatted and given label 'QEMU'
Naturally, it is important not to use the same label on several different partitions.
Clearly, it is important for users who distro hop on this forum that all forum distros used according to forum member preference, eventually adopt the same label requirements when there are such.
NOTE WELL: There are no such label requirements as the above for normal frugal install scenarios of any current KL distro. i.e. only required when wanting save persistence in these special 'boot from iso image' scenarios
You can also manually cause save persistence to go to any different LABEL being used on a partition via user-intervention during, for example, grub2 boot (by quickly editing the stanza), but generally such additional effort is neither recommended nor needed.
For Qemu, you can also boot all KL-designated distros, via a cdrom iso image, using save persistence to qemu image disk partition /dev/sda1 without needing any LABEL for that partition at all.