You could ask on the MalwareBytes website.
But it is not necessary to run MalwareBytes after you have a clean scan. At the moment there are no self-propagating viruses for macOS.
The only things that affect macOS are things you are tricked into installing. Some download websites put their own installer around some freeware or shareware and it does a side-load of adware to make money for the website. Or an app vendor gets paid by an adware vendor to do a side-load of the adware. Or some malware pays for an ad on a website that looks like a very inviting download button. If that webpage was someplace that downloads something you want, you may accidentally choose the fake download ad banner, and since you expected to install something, you proceed to do the install (that one actually got my wife who is a computer professional during the day).
If you are not installing anything, then there is no need to run any anti-virus software.
You could uninstall MalwareBytes until the next time you install something. Then you download the current version, run a scan and uninstall it again.