Can Google de-anonymize me if I use K9 Mail?

Pixel's aren't available where I live, so I bought a Samsung phone to get rid of my old Xiaomi phone. This time, I didn't sign into my Google account (and Samsung) as I use practically no Google products.

I now want to setup my personal gmail because some of my contacts still have it and I need to reply them without too much wait. When using K9 mail, it opens a webview using Bromite. If I sign in to Google …

account anonymize contacts gmail google google account live mail old personal phone pixel privacy products rid samsung sign xiaomi