Students can access all of their session recordings by creating a student account at my.bramble.io/sign-up. Bramble is completely free for students. All they need to do is register their account with the same email address they use when entering their Bramble Rooms.
All of their session recordings (Including retrospective ones) will then appear on their Sessions page (my.bramble.io/sessions), with the relevant PDFs attached.
If you want to make sure the students receive a PDF of the work every time, just make sure you always export the Notebook whilst the students are still present in the Room.