https://www.epo.org/en/node/public-attendance-oral-6

How will members of the public be prevented from recording oral proceedings?

No image or sound recording, or retransmission, may be made of any part of oral proceedings or consultations held by videoconference other than by the EPO (see notice from the European Patent Office dated 22 November 2022 (OJ 2022, A106)) Both the parties and the public are expected to abide by this rule. The prohibition implies that there is no lawful way to record the oral proceedings and as such no use may be made of any such recording.