Maybe I'm being really thick, but why is this information that the OS would make available to apps?

Maybe it’s derived

	▲	LoganDark 29 minutes ago \| parent [-]
		It's probably the app checking the last modified timestamp on some filesystem location that's only touched during setup. Edit: It's not a last modified timestamp, it's a volume creation timestamp: https://github.com/mysk-research/loupe/blob/2262efd4456ecba8...