MDN URL: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/proto

What information was incorrect, unhelpful, or incomplete?

Hello, this information is not true, proto is not deprecated and you can see it in the specification tc39/ecma262#2125

What did you expect to see?

The text makes extreme judgments and is harmful to the mental health of the developers (it does not let me sleep), it should be replaced by:

proto is a functionality that is maintained for compatibility reasons, use it if you know what it does or have no other alternatives, always prefer to use the functionalities of the object "Object".

Remove the note about performance as it is not endorsed by any source.

Thanks