Who can see my recordings?
If your account is connected to a studio, your shows are visible to your studio admin by default, so they can view and download your recordings. You can make any individual show private in its settings.
If you've set an automatic notification email on a show, that recipient can also view those recordings.
Private shows are never visible to anyone except you automatically, but you can still share any recording yourself by generating a share link, which lets whoever you send it to view and download that session. “Private” just means nothing is shared without you choosing to.
Can my studio join my recording sessions?
Only if you let them. They must be invited or admitted as either a guest or producer with the appropriate link, and they can never join a live session without your approval.