Using Malwarebytes vs. MS Defender, corporate versus personal
Business vs. personal antivirus has some important differences. For your personal antivirus Windows 10 comes with MS Defender. It has become a very good product. It ranks up there with some of the other personal antivirus tools like Malwarebytes.
If you feel you need more than your basic protection give some consideration to Malwarebytes instead of just what come with Windows. Sophoes is a great personal antivirus for your MAC.
But the question asked about if your small to medium business should consider a differenc5t AntiVirus. I recommend Trend Micro antivirus for your business. The main difference is you have a server and the antivirus is distributed to the server and then to you workstations. You have centralized control and this will give your IT people more time for other issues.
Look at Trend Micro for business antivirus, and Malwarebytes for personal PC, and Sophos for your MAC. But if you want to save some money on your PC stay with MS defender that comes with Windows 10.