The first one looks like garbage, its first citation is a YouGov online poll and then it has several citations of the publisher of Animals 24-7.

Hard to assess how good the second one is because it is a meta study and so it's not super easy to dig into the methodology. I believe any study that's looking at reported breeds is open to error as pitbulls are the most likely breed to be misidentified.

>Talk all this game about bias and fallacy and provide 0 sources.

I have repeatedly linked this wikipedia list of dog bite fatalities in this thread, you can look at it yourself and see that while there are pitbulls and pitbull mixes, they are not even close to the majority of cases despite being much more prevalent than many of the other dogs on there.