I’m an engineer in Office. This is not the case. The desktop app’s are fully native, and will remain so. They utilize React Native for a few components, but otherwise are written in C & C++.
So, what the hell was this guy tweeting about?
Whoever makes the first neural model capable of returning interesting insights after being installed in the telephone switchboard/backbone is going to have a most unique life.
Edit: Just realized ISPs have probably been trying to do this for years. I'm talking about the first individual. It'll probably happen routinely in 20 years or so.