When building a new Microsoft 365 application, developers typically have two main options: the SharePoint Framework (SPFx) or Microsoft Teams apps. A power feature of each option is that they can be deployed to each other’s platforms. For instance, you can create an SPFx web part deployed to SharePoint Online pages as just a web part of single page app (SPA) or deploy it to Microsoft Teams as a Microsoft Teams tab. Alternatively, you can build a tab in Microsoft Teams, deploy it within...