There's a huge difference between slant, bias, and cherrypicking.
Snopes does none of that. Snopes is straight up disingenuous at best and outright lying through deceptive imagery at worst.
They will take a single word out of a claim and use it to rate it "mostly false" when it fact it is "mostly true, but this one point means the entire thing is forgeted, so here you go!"
But they KNOW most people are drooling slackjawed degenerates who don't read past the MOSTLY FALSE so it's not like they'd be held to account for being even a tad off about their fact checking. And you know what, you don't get to be a fact checking site and be bias. Facts, by their very definition, are unbiased, or is Snopes in the business of Alternative Facts now?