I have a piece of code:

const finalPromise = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve("finalPromise");
  }, 1000);  
})

const obj = {
    nested: {
        a: 1,
        b: 2
    }
}

const p1 = Promise.resolve(3);
const p2 = Promise.reject(22);
const p3 = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve("foo");
  }, 3000);
});

new Promise(res => {
    for(let i=0; i < 3; i++) {
        if(i===0) {
            p3.then(r => {
                obj.nested.a = 3;
                console.log(r)  
            }).catch(console.log)
        }
        if(i==1) p2.then(console.log).catch(console.log);;
        if(i==2) p1.then(console.log).catch(console.log);
    }
    res(true); // this won't wait until all promises resolved/rejected
})
.then(() => finalPromise).then(r => console.log(`final ${r}, ${JSON.stringify(obj)}`)) // here we'll get obj with a = 1
.catch(e => console.log(`err ${e}`));

The result of this code run is next:

[LOG]: 3 
[LOG]: 22 
[LOG]: "final finalPromise, {"nested":{"a":1,"b":2}}" 
[LOG]: "foo"

So my question is – can we somehow rewrite the code so we would get to the last then only after all promises inside the for loop resolved or rejected(also should be counted as resolved)? I know this can be done with async/await but it is forbidden for some reason.
I tried to use Promise.all but couldn’t find the way to count rejected as resolved also.