Malwarebytes

I don't use Malwarebytes but if I was to use any 3rd party malware software, it is what I would use and if I used it, I would give it full disc access. Also see the following from their support site: https://support.malwarebytes.com/hc/en-us/articles/360038520494-Give-Full-Disk-Access-for-Malwarebytes-on-Mac

Perhaps this article from the Developer of this software may or may not shed some light on this computer issue

refer to below

Give Full Disk Access for Malwarebytes on Mac

The short answer: Yes, give it access. It needs full disk access in order to search everything for malware.

Welcome and thank you too