Bae's self-watch alongs seem to be one of the stronger arguments for Holo "live" concerts being done actually live or at least in one take (with maybe a backup pre-show take being done in case someone gets sick), with the way she always cringes at dance mistakes and talks about how she was glad that this or that song was a cooldown song because she was losing her mind from previous songs at that point.
Well, with the exception of the song where she danced with a doppleganger. She would have had to pre-record one of those parts as apparently it was her and not a backup dancer.
(Admittedly the end credits with scenes from the show point more towards it being pre-recorded, even if it's all done in one take)