update field with existing field in mongodb

Question

mongodb structure is like;

[
    {id: "1" , name: "alex"},
    {id: "2" , name: "felix"},
    {id: "3" , name: "kelix"},
    {id: "4" , name: "hannah"}
]

Let's assume I want to add "s" each document in the document.

[
    {id: "1" , name: "alexs"},
    {id: "2" , name: "felixs"},
    {id: "3" , name: "kelixs"},
    {id: "4" , name: "hannahs"}
]


db.list.updateMany({}, { $set: {name: "$name" + "s"})}

But this followed by script contains errors.

Is it possible to update field with its existing value in mongodb?