Formerly pretty good free resource for academic citations now turned into a giant pile of steamy hot garbage by the incredible asswipes at Chegg, a corporate name that mostly calls forth the image of a debilitating sexually transmitted infection.
Recommend using instead: https://www.scribbr.com/citation/generator. At least until they also start demanding your firstborn daughter for each citation.
I’m in academia and I can report that still nobody uses those.
For your own archiving, just use Zotero.
For writing papers, use bibtex.
All those citing websites are just scams for high school/undergrad students trying to find their footing. There is no reason they should exist.