This game has recently been updated. The new version has updated a lot of things. How to switch the perspective of 7 Days of Death is one of them. Below, the editor of Source Code Network will take you to see how to switch the perspective of Seven Days of Death.
Find the ~ key on your keyboard and press it to open the console.
Enter DM in the console and press Enter. "debug mode on" will be displayed on the screen.
Then close the console, find the F5 key on the keyboard, and press it to switch to the third-person perspective.