samsung is a garbage company that purposefully do this stuff to make you keep buying new phones, def switching to an iphone. anyways in 2023 ive tried basically all these methods and none of them work but i have found something similar to a popular one. so whenever you force stop the "Android System" app which others have talked about it does get rid of the notification but still doesnt let you charge. to bypass that, put your phone on the higher battery saving mode which limits all background activity, then force stop android system twice and plug your charger in. even if theres the beeping from the alert just keep it in for a few seconds and it should work, it did for me. im just sick of this i factory reset my phone without backing up my photos so theyre all gone now. save yourself the pain and get a different phone after