App email and Google account

Using /e/OS Applications
1

Hello, I’m running e/OS/ 1.9 on a Pixel 4 5G, and I have a question about the email application, why when I log in with my Gmail address a Google account is created in “Account”, while when I connect the same way with K9mail there is no Google account created?.
Is there anything to be done to prevent this?

Thanks

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