Did you notice or hear of any changes in your time as an intern in how Google's/Alphabet's software development teams work and interact?
Didn't hear of any changes. From what I know, Google's teams work mostly on-their-own-ish. They probably use shared resources but a team like Gmail and a team in Life Sciences probably didn't really interact that much before, so I don't think this changes too much.
I can't say anything for certain though, since I don't know.