Are push notifications to code apps (via Power Apps Notification V2) supported?

[Shashank Taneja (tanejashashank)]

Now that code apps open in the Power Apps mobile app, I tested sending push notifications to one. It works, but only through a workaround, so I’d like to know if this is supported before building on it.

What I did

Power Automate flow with the “Send push notification V2” action, Mobile app set to Power Apps
The code app doesn’t appear in the “Your app” dropdown, so I used a custom value:
{"appIdentifier":"","type":"CanvasApp","displayName":""}
Since the recipient and message fields don’t load with a custom value, I passed them in the Payload/dynamicParam field:
{"recipients":[""],"message":"Test","openApp":true,"params":{"woId":"12345"}}

What happened

The notification arrived on my phone
Tapping it opened the code app
Params: [arrived in getContext() / arrived in window.location.search / did not arrive]

Questions

Is sending notifications to code apps supported, or did this work by accident?
Is there a plan to list code apps in the “Your app” dropdown?
What’s the recommended way for a code app to read params passed from a notification?