Plaid effectively admitted to stealing your transaction history and selling it to the highest bidder in the past. There was a settlement and they agreed to not to that in the future
Just don’t ever share your password, and certainly not your banking password, and definitely not with Plaid.
The whole reason I got on YT Premium was because it was free with Google Play Music. I have real issues watch non-Premiun now, because I’ve always disliked advertising methods. (Not so much th ads, which can be entertaining, but just being shown content I didn’t request instead of the content I did request.)