Hi,
@zeras what you are receiving are not emails !, they are converted into emails.
These are notification most likely are push notification or specific pay loads for specific mobile application.
Why this happening ?
Most likely you changed and wrongly configured few things in your Google account, like connected your own FireBase somehow to receive these or forward them as emails.
How to fix find why you are receiving then forwarding push payloads to your own email, try to remember what have you enabled or installed then gave it full
access to these FireBase message traffic, it could be an app on your mobile or what is more dangerous like you gave
access (authorized) some web application (website) to have full
access to your account.
Also important note: check the full email header and you might find the route of these emails and their servers, and might be also the software agents that processed these or generated them.