Moderated Re: question about importing with gmail
Contacts is completely separate from email messages, presuming you're using the import function in the contacts app.
And what gets imported is either all contacts (most cases) if you're not doing any pre-filtering, or the contents of a contacts file you've exported and tweaked.
Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042
To think is to differ.