Is there a way to disable the new messages view and go to In box?

Is there a way to disable the new messages view from the alert and just go to the in folder or the folder in which the new message is in?

Not if there’s only a single new message. If there are multiple new messages tapping the collapsed/grouped notification will open a message list view.

But after opening the message pressing the back button or tapping the back arrow in the upper left corner will bring you back to the folder containing the message.