Looking through the diagrams I don't see anything. Is there such a thing to adjust the front windows when they close? Noticed just as it closes it shifts foward (at the b pillar), I only noticed as they're tinted so you can see where the film is.

Or I just never noticed it lol maybe the regulator is a tad loose?

 

I think all is normal.
Are both windows making the same motion? If so, then it is normal and you have just noticed it after getting the tint.