Change store view automatically for different customer groups in Magento 2 - magento2

Question

I'm currently using Magento 2.3.2 and I would like to show certain customers a specific store view based on their customer group. (For example a customer in the "General" group would see the default store view, while a customer in the "Platinum" group would see the "Platinum" store view with a slightly different logo and design).
Is there an extension out there that can do this? I can only find ones which restrict the products in the catalog?
Edit 20/02/2020 -
Thanks to Invigorate Systems for the solution. I have now implemented the code as below in the app > code folders:
registration.php file inside GroupSite/SiteSwitch/
<?php
\Magento\Framework\Component\ComponentRegistrar::register(
\Magento\Framework\Component\ComponentRegistrar::MODULE,
'GroupSite_SiteSwitch',
__DIR__
);
module.xml file inside GroupSite/SiteSwitch/etc/
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
<module name="GroupSite_SiteSwitch" setup_version="2.1.1"></module>
</config>
events.xml inside GroupSite/SiteSwitch/etc/frontend/
<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/Event/etc/events.xsd">
<event name="layout_load_before">
<observer name="add_layout_handles" instance="GroupSite\SiteSwitch\Observer\AddHandles" />
</event>
</config>
AddHandles.php file inside GroupSite/SiteSwitch/Observer
<?php
namespace GroupSite\SiteSwitch\Observer;
use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Customer\Model\Session as CustomerSession;
class AddHandles implements ObserverInterface
{
protected $customerSession;
protected $_storeManager;
public function __construct(
\Magento\Store\Model\StoreManagerInterface $storeManager,
CustomerSession $customerSession
) {
$this->customerSession = $customerSession;
$this->_storeManager = $storeManager;
}
public function execute(\Magento\Framework\Event\Observer $observer)
{
$layout = $observer->getEvent()->getLayout();
if ($this->customerSession->isLoggedIn())
{
$customerGroup = $this->customerSession->getCustomer()->getGroupId();
if($customerGroup === '5'){
$this->_storeManager->setCurrentStore('13'); //Set your desired store ID that you wish to set.
}
else{
$this->_storeManager->setCurrentStore('1');
}
}
}
}

Answer 1

You can do this by using Observers, here's an example module for you. this module will change store ID after customer login to the system.
Create registration.php file inside Vendor/Module/
<?php
\Magento\Framework\Component\ComponentRegistrar::register(
\Magento\Framework\Component\ComponentRegistrar::MODULE,
'Vendor_Module',
__DIR__
);
Create module.xml file inside Vendor/Module/etc/
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
<module name="Vendor_Module" setup_version="2.1.1"></module>
</config>
Create events.xml inside Vendor/Module/etc/frontend/
<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchemainstance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/Event/etc/events.xsd">
<event name="layout_load_before">
<observer name="add_layout_handles" instance="Vendor\Module\Observer\AddHandles" />
</event>
</config>
Create Handler file for Observer AddHandles.php file inside Vendor/Module/Observer
<?php
namespace Vendor\Module\Observer;
use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Customer\Model\Session as CustomerSession;
class AddHandles implements ObserverInterface
{
protected $customerSession;
protected $_storeManager;
public function __construct(
\Magento\Store\Model\StoreManagerInterface $storeManager,
CustomerSession $customerSession
) {
$this->customerSession = $customerSession;
$this->_storeManager = $storeManager;
}
public function execute(\Magento\Framework\Event\Observer $observer)
{
$layout = $observer->getEvent()->getLayout();
if ($this->customerSession->isLoggedIn())
{
/*
Here you fetch loggedIn Customer Group and add if condition such as
if(customerGroup == 'ID/Name of group you desire'){
$this->_storeManager->setCurrentStore('2'); //Set your desired store ID that you wish to set.
}
*/
$this->_storeManager->setCurrentStore('2');
}
}
}