When I first installed DisplayFusion it asked me if I wanted to disable the windows taskbar on my second monitor and replace it with the DisplayFusion taskbar. I chose to do that because the installer said it was recommended and I had never used the program before. Now I'm trying to figure out a way to revert my second monitor's taskbar back to the default windows taskbar. Is there a way to do this? I cannot find anything in the settings.

Assuming you are using Windows 10, open the Settings app and click on Personalisation.
Click on Taskbar on the left and then scroll down and you will see the setting.

If you switch back to the Windows taskbar what shall you use DF for if you dont mind me asking?

I'll still be using the DF taskbar, mostly I like the advanced settings it gives me as well for both my monitors. I mostly just needed to know if there was a way to revert back to Windows taskbar should the need ever arise. Thank you for your help.