I couldn't see another thread on this and I thought it might be of interest.
In November 23, the Employment Tribunal announced that, as a general rule, all Employment Tribunal proceedings will be recorded. There may be some exceptions.
Where proceedings are recorded, it is possible for anyone, to request a transcript, upon payment of the costs of preparing that transcript.
https://www.judiciary.uk/wp-content/uploads/2023/11/PD-recording-and-transcription-final.pdf
https://www.judiciary.uk/wp-content/uploads/2023/11/PG-recording-and-transcription-final.pdf
The costs aren't likely to be cheap, but I think this is a real step forward for open justice.