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.
LaTeX doesn't do that automatically. One of the biggest service these sites provide is they scrape a website (or amazon or something for books) and get all the needed info to create a well rounded bib entry for you to copypaste into your ever growing bib file. It's a hassle to do it manualy in LaTeX, because even the author or date of a webpage can be hard to find sometimes.
True, fair. I guess I've just never encountered anything where getting that information was too hard