screen saver not working after Catalina

Hello frankn63,

I understand from your post that your screen saver is not working after updating to Catalina. I am happy to help.

Let's try a test user account.

How to test an issue in another user account on your Mac

Let us know if that resolves this issue for you. 

Thanks for using the Apple Support Communities. 

Take care.

It would also help to know which screen saver. There are built in screen savers and third-party screen savers.