Custom actions work like any other action, appearing as action blocks in the Power Automate for Windows canvas. However, it’s important to note that they’re not for all your users.

With Power Automate, you can create automated workflows for a wide range of business tasks across multiple apps and services — no coding required. Here’s how to get up and running, along with ...

Often people create flows to call Microsoft Graph end points or Approval from within Power Apps rather than "Power Automate connector actions" from within Power Apps.

As Microsoft notes, currently the tool works best with Microsoft 365 apps and services; even so, I was able to use it with common Power Automate connectors like Twitter or other social media.

Ignite 2019: Microsoft is continuing to add more features to its Power Platform, the collection of low-code and no-code tools including Power BI, Power Apps and Power Automate.