That Starmer fella...

The Guardian s pretty specific on this but I haven't seen any other media outlets disagree yet.

One of the key allegations of the 2020 leak was that Labour staff hostile to Corbyn ran a parallel campaign in the 2017 general election, which could have cost the party the chance of winning power.

The Forde report concluded this was “highly unlikely” while noting that the two sides “were trying to win in different ways”, based in part on seeking support for MPs they favoured.