How to add a dynamic homepage in Magento 2?

Magento provides the ability to have multiple homepages or a homepage with dynamic blocks that alter based on demand. However, there may be times when different homepages must be displayed based on customer groups/segments.

This is possible with the dynamic block functionality, which is available in the Enterprise and Cloud editions. However, there is a constraint in that you have to maintain numerous blocks for multiple customer groups/segments. In that situation, you can alter the default functionality by using the code below:

Step 1: Create a plugin for "Magento\Cms\Controller\Index\Index" by adding the below code in your module di.xml file.

<type name="Magento\Cms\Controller\Index\Index">
    <plugin name="dynamicHomepage" type="Mageinsight\Module\Plugin\DynamicHomepage" sortOrder="1"/>
</type>

Step 2: Add the plugin file as below:

<?php
namespace Mageinsight\Module\Plugin;

use Magento\Framework\App\Config;
use Magento\Cms\Model\ResourceModel\Page as PageModel;
use Magento\Store\Model\StoreManagerInterface;
use Magento\Cms\Helper\Page as PageHelper;
use Magento\Customer\Model\Session as CustomerSession;

class DynamicHomepage
{
    /**
     * @var \Magento\Cms\Helper\Page
     */
    protected $pageHelper;

    protected $pageModel;

    protected $storeManager;
    
    /**
     * @var CustomerSession
     */
    protected $customerSession;
    
    /**
     * Index constructor.
     * 
     * @param \Magento\Cms\Helper\Page $pageHelper
     * @param PageModel $pageModel
     * @param \Magento\Store\Model\StoreManagerInterface $storeManager
     * @param CustomerSession $customerSession
     */
    public function __construct(
        PageHelper $pageHelper,
        PageModel $pageModel,
        StoreManagerInterface $storeManager,
        CustomerSession $customerSession
    ) {
        $this->pageHelper = $pageHelper;
        $this->pageModel  = $pageModel;
        $this->storeManager = $storeManager;
        $this->customerSession = $customerSession;
    }

    public function aroundExecute(
        \Magento\Cms\Controller\Index\Index $subject,
        \Closure $proceed,
        $coreRoute = null
    ) {
        $groupId = $this->customerSession->getCustomerGroupId();
        if ($groupId) {
            $pageIdentifier = // You can have your logic to get page Identifier
            if ($pageIdentifier) {
                $storeId = $this->storeManager->getStore()->getId();
                $pageId = $this->pageModel->checkIdentifier($pageIdentifier, $storeId);
                $resultPage = $this->pageHelper->prepareResultPage($subject, $pageId);
                if ($resultPage) {
                    return $resultPage;
                }
            }
        }

        return $proceed();
    }
}

Now you will be able to manage different homepages at one time for different customers.