It is not possible to download your recordings directly to your Dropbox or Google Drive at the moment.
You can download the files locally and share them with your guests if needed. Please keep your company's privacy regulations into account when downloading and sharing recordings.
To download the recordings, either navigate to the meeting details of the meeting you want to download the recording of via the Meetings overview and click the Download icon under the "files" category on the right, the icon is in the bottom right of the recording player, as shown below.
You can also download meetings via the Recording tab under the Meetings overview. Here you'll get an overview of all the recordings. You can then download the recordings directly with the button on the right, as shown below.