I'm sorry, but the idea that Labour had favourable reporting in 2017 is laughable
This was the front page of the most read paper in the country on election day
Here's some other front pages from that campaign
Even Dimbleby said Corbyn hadn't received fair treatment
https://www.radiotimes.com/news/2017...-of-the-press/
Corbyn was portrayed as a terrorist sympathiser who supported the IRA and Hamas. That is not favourable reporting.
The TV media were under strict rules not to show bias to either side (rules they seemingly forgot about this time), it wasn't favourable reporting, it was fair reporting.