If you choose to Sync to your Google Account, your profile name will automatically be your Account name.
If they open your Chrome profile, they can see info like what websites you visited. If someone has your device, they can switch to any other Chrome profile on it. Only share your device with people you trust. What others can see when you share Chrome
Keeping your different accounts, like work and personal, separate.
Sharing a computer with multiple people.
With profiles, you can keep all your Chrome info separate, like bookmarks, history, passwords, and other settings.