Apple has been trying to move users away from the home button for some time now.
Here's how to do it.
Check out the products mentioned in this article:
How to get a home button on-screen on your iPhone
You can add a home button using an accessibility feature called AssistiveTouch.
1. Start the Settings app on your iPhone.
2. Tap "Accessibility" on an iPhone running iOS 13. On an iPhone running iOS 12 or earlier, tap "General" and then "Accessibility."
3. Tap "Touch."
4. Tap "AssistiveTouch."
5. Turn on AssistiveTouch by swiping the button to the right. The AssistiveTouch button should appear on the screen.
To use AssistiveTouch, tap the button which hovers on the screen. It should pop out into a button overlay menu with several buttons, including Home. Tapping home has the same effect as pressing the home button on the phone.
You can also reposition the AssistiveTouch button anywhere on the screen by dragging it where you'd like it to appear.
How to customize AssistiveTouch
You can customize this AssistiveTouch menu as well by adding, removing, or changing the buttons. If you delete all the buttons except one, the AssistiveTouch button can function as the home button with a single tap.
1. Open the AssistiveTouch settings and tap "Customize Top Level Menu."
2. On the Customize Top Level Menu page, you can tap any button and change it to perform a different function.
3. If you only want to see the home button and want to get rid of the rest of the options, tap the minus sign until it only shows one icon. Then tap that remaining button and choose "Home."