There are two ways to make a background transparent in Photoshop: using the Remove Background quick action or manually by using selection tools.
The quick action works with a click in just seconds, but it may not work for complex images.
You can also delete the background by carefully selecting the subject, inverting the selection, and then deleting the selection.
Making the background transparent – sometimes referred to as punching out the background by graphic artists – is a straightforward task in Adobe Photoshop. But depending upon the subject you are trying to isolate, it can be laborious and time consuming. It all comes down to how much overlapping detail there is between the foreground and background.