In the following official statement, Google specified they will suspend all the Google Business websites by the end of March in 2024. Following this, everyone, who attempts to visit your GBP site, will be automatically re-routed to your Google Business Profile instead. But this is only a placeholder solution. This is because after the 10th June 2024 this redirect will not work and the visitors will only see the Page Not Found (404) error. Rather, you will have to update your Google Business Profile page to include the link of your new website for your users to click. If you have added a self-hosted website before, then you do not need to do anything more.