I smell and air of desperation.
Even if the GB News is a publicity move, it's still an odd one. How many TRAs work GB News? So she's trying to pitch to her market indirectly because she doesn't have a direct market from GB News. It has to only be about social media and re showing clips.
It's a way of suggesting she still has credibility when she's lost all medical credibility. Which is fascinating.
GB News is simply not a natural choice to go pedaling this on. Many TRAs will be angry for her going on GB News because of its political leaning rather than giving her credit for 'trying to put the other side of the story across' because GB News is hated.