Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
If I look at the source code of most any page that uses keywords, then they and/or the phrases are seperated by a comma and spaces. It is from that observation that I made my conclusion.
In practice your keywords may have little to do with SEO in today's world and the Description may be more important. Search Engine Optimization is a big broad open ended subject...
DavidF