Most people don't have the time and the access to resources to prove and justify everything we believe in science.
It isn't just science, it's any subject, all of human knowledge basically. It's why I was talking about textbooks and lectures. Students typically begin their studies believing most of what they are taught. (That's not necessarily a bad thing. I'm not criticizing it, just pointing it out.)
Even when proof and justification are addressed, they are going to make use of additional assumptions of their own. Methodological assumptions, logical assumptions, theoretical assumptions. Many of those things in turn can be justified, but if regresses are to be avoided, something will just have to be accepted.
The language game often tries to equate faith with religion.
Among atheists 'faith' seems to be a perjorative, useful for pounding on 'religion' which is viewed with disdain. In some religious communities 'faith' is an honorific, something that they want associated with themselves. So there are forces on both sides of this little war that want 'faith' associated with 'religion'.
But if we define 'faith' as committing one's self to the truth of beliefs without complete justification, then we probably should recognize that it's happening constantly, even in science. That's just a fact of life, part of the human condition.
It's just that religion is one of the places where it is most obvious and blatant.
If that is true, does that imply such knowledge, even of science, is a form of religion?
No, I don't want to go that far. I'm suggesting that faith is inherent in human cognition. I don't think that faith should be equated with religion.
But yes, I agree that if we do bend to the rhetoric and identify faith with religion, and if it's true that science isn't immune from faith, then your conclusion would seem to follow.