You clearly don’t understand how Salesforce works. It’s a tool, and up to the users to configure it correctly for their needs. It’s so complicated (by necessity) that people at other companies have their entire job titles as “Salesforce engineer” as they decide how to configure it for their company. Maybe Salesforce could have better documentation/support, but the fact that so many other companies use it effectively means that the problem here could be the ones setting it up.