I read Can downloaded Android emails be backed up? and that seems to be the closest thing I can find to what I'm looking for, but it's an older post. I have a Samsung Galaxy Note 9 with Android 8.1.0 and I'm not familiar with rooting or how one would go about entering the commands outlined in the referenced post. Also, it seems like the output would be a backup file of all Gmail data. I'm really only interested in the emails from a specific account who's domain and all associated data has been deleted from G Suite and Google's servers. Ideally, I'd like to get the output from the locally stored Gmail data into a pst format to later add the historical emails back to a new account in Gmail.