Socket io dosen't detect always disconnect

Disconnecting dosen’t work always When Socket io disconnecting except Mongodb database to remove online user but it dosen’t work sometimes. Record in mongodb database stay sometimes especiellay if user closed the browser for long time. Socket.IO server version: 4.1.2

Server side:

import { Server, Socket } from "socket.io";
import "./config";

import { MsgModel } from "./models";
import { JoinListModel } from "./models";
import { callUserTypes } from "./typings";

const io = new Server(5000, {
  cors: {
    origin: ["http://localhost:3000"],
    credentials: true,
  },
});

io.on("connect_error", (err: any) => {
  console.log(`connect_error due to ${err.message}`);
});

io.on("connection", async (socket: Socket) => {
  console.log(`✅ Client ${socket.id} has connected!`);

  socket.emit("me", socket.id);


  socket.on("Join", async (data: any) => {
    const findIt =
      (await JoinListModel.find({ nickName: data.nickName })).length > 0;
    if (findIt) {
      socket.emit("loginMsg", "Danger");
    } else {
      const JoinList = new JoinListModel();
      JoinList.id = socket.id;
      JoinList.nickName = data.nickName;
      JoinList.joinedDatenTime = new Date();
      await JoinList.save();
      const onlineListData = await JoinListModel.find({});
      io.sockets.emit("OnlineList", onlineListData);
      socket.emit("loginMsg", "Success");
    }

    console.log(`${data.nickName} is joined!`);
  });

  socket.on("disconnect", async () => {
    await JoinListModel.deleteOne({ id: socket.id });
    console.log(`🚫 Client ${socket.id} has disconnected`);
    const onlineListData = await JoinListModel.find({});
    io.sockets.emit("OnlineList", onlineListData);
  });
});

Client:

const [socket, setSocket] = useState<Socket | null>(null);

  useEffect(() => {
   const socket = io("http://localhost:5000");
   setSocket(socket);
},[]);

Please help? Why socket io dosen’t detect that?

EDIT: edited by me (@darrachequesne) for clarity

[darrachequesne]

Closed due to inactivity, please reopen if needed.

[fadihanna123]

I tried to reload page or close the tab but sometimes it ignore removing online user from database it means that socket io doesn’t detect disconnecting always of some reason. Can you help me, please?