I'm taking a QFT class at my university right now, and it's very different than any discussion of quantum mechanics I see online. It's pages upon pages of math

I'm taking a QFT class at my university right now, and it's very different than any discussion of quantum mechanics I see online. It's pages upon pages of math and linear algebra. Very little text or discussion. Physicists don't really care whether you call it "probability", "probability amplitude", or "fish". What you end up with is an equation that you can take to the lab and use to predict experimentally measured results. I'll add that at some point the math just becomes so bizarre that you can't (or at least I'm unable to) come up with some kind of textual analogy for it. (This is what QFT is like for me: Manipulate symbols according to mathematical rules until you end up with an equation. Realize the equation can't be solved analytically. Realize exponential computing power would be required to solve it numerically. Make an approximation and modify the equation. Solve numerically and see how well it agrees with experiment.)