I would love to be able to use a consultant license within different organisations without the need für organisations to pay a seat for me, additionally. This does not seem to work, at the moment. Licensing needs to be clarified, and there is a need for something like a »freelancers license« that can dock on onto different teams.

I agree! I've got a Consultant license and like to reuse some of my templates but can't copy paste or reuse these easily unless I do the following workaround. Open Miro within the browser (dreaming you are logged into your Teams account) and give the board access as edit mode and copy 'share link'. Open the Miro desktop app and log into your Consultant account. Open a new browser and paste the link. When a popup dialog appears in chrome asking if you would like to open the desktop app, click open and you will now have access to the board using your personal Miro account within your Desktop App.