From my understanding it is real, but maybe someone could cross check. McLaren has visible state of charge on their wheel so we could compare the SoC with the lap where they showed Norris/Verstappen SoC level on the broadcast.
Teams didn't want that data to be publicly available to all other teams, for example in the live stream data because they would all monitor each other and coach their drivers.
F1 can show the stuff that is non public, but it is just done sporadically.
