Comment 2 for bug 1929539

We already allow configuring the power button action via `snap set system system.power-key-action=poweroff|sleep|ignore|...`, this sounds very similar in scope.

No idea what to call it though? Is there another name for this action (pressing ctrl+alt+del)?

In any case, we would probably do as xnox suggests and make the ctrl+alt+del do nothing by default, and then allow changing that behavior through snap system configuration. Whether that's through a systemd symlink or a config file or whatever would need to be figured out too.