To Theists That's very interesting, Corvus. I think the pre-occupations of theists and atheists tend to be different with regard to faith. For some atheists, there seems to be no God and so the mere existence of God is an issue, a problem, a puzzle about why some otherwise apparently rational adult people should believe in an imaginary being. You can feel the frustration and impatience in writers like Hitchens and Dawkins - as if they are saying, c'mon, guys, admit that it's all a fantasy. For many theists, the existence is plain and it is the relationship with God that needs thinking about. So 'faith' for a theist might tend to be more about the question of how you can trust somebody than the question whether something exists.
Hanover, yes, I think you're right. There is such a thing as blind faith: crossing your fingers, leaping in the dark and hoping for the best regardless of probabilities. Faith in the vaccine isn't like that. I think the question of whether religious faith is like that depends on whether there's a God or not. And that's the point at issue. If there is a God then it's not blind faith to go along with a previously existing hunch that there is a God. If not, then it's delusion and blind faith.