NavigationMixin.GenerateUrl can be used in the Salesforce Lightning Web Component to generate the URL. Then, we can use window.open() method to open new window using Quick Action.

HTML:

<template>   
</template>

JavaScript:

import { LightningElement, api } from 'lwc';
import { NavigationMixin } from 'lightning/navigation';

export default class OpenAccountQuickAction  extends NavigationMixin( LightningElement ) {

    @api recordId;

    @api invoke() {

        console.log( "Inside Invoke Method" );
        console.log( "Record Id is " + this.recordId );

        this[ NavigationMixin.GenerateUrl ]( {

            type: 'standard__recordPage',
            attributes: {
                recordId: this.recordId,
                actionName: 'view',
            },

        } ).then( url => {

            console.log( 'URL is ' + url );
            let completeURL = window.location.origin + url;
            let windowFeatures = "menubar=no,resizable=yes,scrollbars=yes";
            windowFeatures  = "width=" + screen.width;
            windowFeatures += ",height=" + screen.height;
            console.log( 'Complete URL is ' + completeURL );
            window.open( completeURL, "_blank", windowFeatures );

        } );

    }

}

js-meta.xml:

<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>52.0</apiVersion>
    <isExposed>true</isExposed>
    <targets>
        <target>lightning__RecordAction</target>
        <target>lightning__RecordPage</target>
    </targets>
    <targetConfigs>
        <targetConfig targets="lightning__RecordAction">
            <actionType>Action</actionType>
        </targetConfig>
    </targetConfigs>
</LightningComponentBundle>