I've not touched Norton since it was acquired by Symantec in the 1990s when they basically screwed over Mac customers by using almost all the system resources to offer live scanning. It also had a high right of false positives.
The only thing we found it useful for (aside from the original Norton Utilities) was to clean up the Microsoft Office documents that had been infected with the infamous 'macro virus' by our Windows PC owning clients/colleagues.
The only 'always on' AV/security product I've used has been the built-in Windows/MacOS AV/security...with MalwareBytes/SpyBot as an 'offline' tool if I want to manually check/scan something.
The latest 'security suite' offerings from most AV vendors are bloated bundles of apps that keep offering more and more 'useless' functions that most people will never use (ransomware protection, VPN, cloud backup, password manager, proprietary firewall, parental controls, identity theft protection, etc.) to justify their subscriptions. Plus some of them Norton/Bulldog/Avast/et all leave nasty traces of system-level stuff behind (especially the firewall/vpn crap) when you try to uninstall them, whether you use the official uninstaller or the Windows programs/apps uninstall function, so that it sometimes seems like you've got a network problem when it's actually a incomplete uninstall that's borked your system.