Would you also like to know if there was an EV company or environmental group financed or sponsored astroturf campaign against ICE vehicles?
Frankly, I hope that both of those things happened, so that people could make their own minds up after an adversarial process. (We have one pure-EV and one ICE car (non-plug-in hybrid, but that's just ICE with extra equipment for marginal efficiency gains), because the cars have different use cases that they're good at. I'm very happy for the EV companies to tell me how much better EVs are than ICE cars; I'm also happy for ICE car companies to tell me how much better their cars are than EVs.)
It’s not like you can squash only PR campaigns that you happen to be misaligned with, so If you want your own biases to be able to communicated, you have to let others do the same.
> Would you also like to know if there was an EV company or environmental group financed or sponsored astroturf campaign against ICE vehicles?
I wouldn't care, because environmental groups aren't destroying the planet and covering it up (see also the article you're commenting on: "New Documents Add to Evidence in Climate Deception Case Against ExxonMobil").
> If you want your own biases to be able to communicated
Wanting to know if you're being lied to isn't a "bias".