Make a record of the proper type (e.g., to create a contact page layout, open any contact record). Then go to Menu > Page Layouts to access the Detail content link for the custom template. Select Setup > Custom Template from the side menu to launch the Search Custom Template dialogue box, then click the New button.
Go to >> Setup >> Object Manager >> Choose an object >> Page Layout. Select the Edit option. Record page fields can be customised in the following ways: As illustrated in the image below, drag & drop appropriate fields onto the layout.
In Experience Builder, you may change the content layout.
Open the page's properties in Experience Builder. Click the top toolbar beside the page, or click.
Change the layout under Page Properties' Layout section.
Choose a new layout.
Change the settings by clicking on it.
You can change whether a field is needed when you adjust page layouts. Change the order in which the fields on the page are displayed. Assign distinct user profiles to different page layouts.