The software update macOS Catalina Security Update 2022-002 10.15.7

Have you tried updating in safe mode?

How to use safe mode on your Mac - Apple Support (Takes Longer to boot)

Note: Safe mode prevents your Mac from loading certain software as it starts up, including login items, system extensions not required by macOS, and fonts not installed by macOS. It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. And it deletes some system caches, including font caches and the kernel cache, which are automatically created again as needed.

I am running Catalina on a 2019 imac and since the 2-22 security update, my software update is showing notification but in my system preferences the software update just continually spins. I'm in safe boot and having the same issue. I have not installed additional software/peripherals or updated any existing since the sec. update.