keychain access

A single Apple ID with its account credentials is signed in Mac system preferences , the other accounts with different Apple ID can be added in Mac system preferences Use your Internet accounts on Mac – Apple Support

Read What is Keychain Access on Mac? - Apple Support

Passwords with mail address are saved in keychain access and not accounts .

Hello,

I don't know exactly what you mean by your question, but I understand that you have a lot of accounts in the keychain. The keychain is where your passwords of your accounts are kept safe. The more accounts you have the more accounts you will see here..

This article explains more about it:

Manage passwords using keychains on Mac - Apple Support

If this does not answer your question please let us know.

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