Ah, it's available only if you pick a specific wallpaper image, that's why not everyone sees it.

> pick a specific wallpaper image

you interest me strangely - which one?

	▲	krige 8 hours ago \| parent [-]
		Oh I didn't mean a specific file. Lock screen wallpaper has three options, custom image, custom slideshow, and Spotlight. The former two have the "Get tips (...)" checkable, the latter doesn't.