Amazon Account with unauthorised purchases, did my google passwords get leaked

Hi, I was traveling overseas and was using public wifi temporarily. Then I received email notifications for three purchases of Apple Gift Cards $50 each. I quickly logged into my bank via its app on my phone with mobile data and locked down the card, then removed the card payment method in Amazon.
I used Google chrome with my synced account and the google password manager. Is it possible that somehow, the amazon account details were leaked? The password and …

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