Antivirus on Mac?

Paranoid might be a little extreme. It's beneficial to be cautious. That's the inspiration for the "effective defenses" principles.

"Anti-virus" products present not only a security threat, they tend to instill a misplaced and irresponsible sense of security. Plenty of people asking for help on this site are already running various and sundry "anti-virus" and / or "anti-malware" things, yet they didn't help. Most of them will only cause troubles of their own.

Hi l have been reading here that we don't need antivirus on a Mac

Correct.

l spoke with an Apple technician over a another issue and he recommended l get Malwarebytes go figure

Ask him to justify that recommendation (hint: you don't need it).

Read Effective defenses against malware and other threats - Apple Community

Maybe I can help. Malwarebytes is technically not an anti-virus app. It is safe to use, free and it only identifies and removes malware. Otherwise, Macs do not get actual viruses as PCs do. I use and recommend Malwarebytes for occasional use as needed.

Hi,

I haven't been facing with Malware trouble yet, though if you worry about it, you should get anti-Malware utility.

Using non-Apple "anti-virus" products will increase its threat profile and destabilize your Mac.

You're not the first to find out how bad "Norton" is, or how difficult it can be to remove it. So many Mac users have been affected by it that there should be an emotional support group for them.