Sorry, I am still a freshman. Please be patient with me for not using the right terms etc. :)
So, our team has a group for internal communication with folders for specific projects. To work with externals we create another Office 365 group for each project and invite the partners as guests. The content of the project folders should always be the same.
So I am looking for a way with power automate or whatever (I am really a freshman here) to sync the two folders in both directions.