Actually Malwarebytes is advertised as Anti-Malware, it can detect viruses on a certain level but definitely not as efficient as a typical AV, when Malwarebytes is run in conjunction with an AV it is supposed to give first detection preference to the AV but it’s still recommended on the Malwarebytes forum that exclusions must be put in place as Malwarebytes now covers more areas with it’s anti exploit and ransomware detection so the chances of conflicts are much more likely if exclusions aren’t placed between the two products.