Beginner book that has endgame scenarios I’ve been looking for free online books on endgame scenarios, since I'm very bad at them. So far, I haven’t gotten any luck.
By the way, I only know the pieces moves and some other basic stuff.
BCE (Basic Chess Endings) by Fine was the one I used.  It is long out of print.  There are some  newer books but I can't say which of them might be good now.  Also online has the sort of info you want and would be easier to find what you think is good for you.