A chrome profile is a collection of chrome settings that are related to your personality and behavior. It contains things like your typing and browsing history, the tabs you have open, the pages you visit the most, and your open projects.
If you want to password protect your Chrome user profile then read this article for a step-by-step process.
Technology has changed, enabling you to keep your details private. Below are some of the guides to help you in setting your profiles.
The article will tell you how to password protect chrome user profile with a password. There is a standard way to switch between profiles, but it annoys many. And you need to get such an account, switching to which will be impossible without filling in your logins.