Ive taken all the async out of my code when connecting to mongo db

`const { MongoClient, ServerApiVersion } = require('mongodb');
const uri = "mongodb+srv:.......";
// Create a MongoClient with a MongoClientOptions object to set the Stable API version
const client = new MongoClient(uri, {
serverApi: {
version: ServerApiVersion.v1,
strict: true,
deprecationErrors: true,
}
});
try
{   
  function run() 
{
    // Connect the client to the server (optional starting in v4.7)
    let swi=false;
    try
    {
        client.connect();//conneted to the server
        swi=true;
    }
    catch(err)
    {
        swi=false;
    }
    if(swi==true)
    {
        client.db("admin").command({ ping: 1 });
        console.log("Pinged your deployment. You successfully connected to MongoDB!");
        const db=client.db("Rehab");
        const coll=db.collection("Support");
        
        // Send a ping to confirm a successful connection
        
        
        let front=false;
        
        
        //let result=coll.insertOne({data:"Hello dudes"});
        let find=coll.findOne({Email:"[email protected]"}).then;//The .then changes the console.log
        console.log(find);
        /*try
        {
            let find=coll.findOne({});
        }
        catch(err)
        {
            console.log(err);
        }*/
    }
    else{console.log("Not working");}
}
run();

 }
catch(err)
{
    console.log(err)
}  
  //client.close();`

After running this code on cmd using nodemon i get
Promise { }

After adding .then i get
[Function: then]

How would i fix the display of this what do i need to do inorder to convert the promise, without async.

Or could somone explain to me why i need to use async? Thank you

`const { MongoClient, ServerApiVersion } = require('mongodb');`

Also could someone explain the {} above and how require(‘mongodb’) is stored onto the const, just how it is stored and not why it is stored. Is it stored on MongoClient and ServerApiVersion?