Modern Sharepoint Home Page. Open the browser developer tools by pressing F12. Now I knew there is a programmatic way to get the home page layout using PNP PowerShell but in a day to day non admin every day person scenario that is not going to be practical.
On modern sites like Communication or Office 365 Group Site it does not show it in URL but if you still have classic sites you might see SitePageshomeaspx suffix added at the end of the URL. Then click on to the New which is present at the top of the pages. If you have an existing site in SharePoint Online you probably already have modern lists and libraries.
Use a different page for your SharePoint site home page.
We recommend using the SharePoint PnP modernization framework for all other site pages. Add a new Page To add a new modern page just click on Gear Icon Add a page Once you do a new modern page. SharePoint home site on the other hand is an organizations top portal. Provide the title and add any site content as per the business need.