To make Google, your homepage is quite simple. As a matter of fact, it also depends on the platform on which you want to default the homepage as Google. You can make Google your default homepage on your Windows system, phone, or browser. However, generally, while you might have opened your browser, you will find a tool icon at the far top right for your browser window. Click on it, and then you will see some options showing up.
Kindly select internet options. After that, you will have to check the search section at the general tab, and then click Settings. Then you will click on the browser and click on set as default. Afterward, you can close the interface. Nevertheless, there might be some slight differences due to the difference in the browser or device you are using. To change your default homepage, just try going through the settings, then locate the internet options and choose your default homepage.