The same way we already have Paste & Go on the address bar and Paste & Search on the search bar, I would like to have Paste & Submit on any form's input field.
Youtube, Google, whatever, it would help save lots of clicks and time. More than that it would also save some poorly designed website like this one : https://vgmdb.net/, with no submit button on their search field which force you to press Enter on your keyboard !