Send-MtTeamsMessage: ChannelMessage.Send no longer available as Application permission in Graph API

[Notorious-AFK]

After some trial and error I believe Microsoft Graph API does not provide the "ChannelMessage.Send" as an "Application Permission", only as "Delegated" which wont work in the Pipeline context.

Because of this missing API permission the "Send-MtTeamsMessage" function cannot be set up as described in the Maester documentation; https://maester.dev/docs/monitoring/teams#prerequisites

The API availability for applications is also reflected in the MS documentation:

• https://learn.microsoft.com/en-us/graph/api/channel-post-messages?view=graph-rest-1.0&tabs=http

Any other methods that can be used to implement Teams channel posting?
Thanks!