I would assume the opposite. Why a company which makes money from tracking users for many reasons develops an OS which prevents tracking?
My guess is that it'd be an OS which would perform tasks Google needs to stay as Google better than Android, and Google may sell these capabilities to devs to further enhance their bottom line.
Google cannot change the Linux kernel like they control Chromium or the most of the Android, so with Fuchia (or its kernel) they are more in control once again.
Again What has google done to make Chrome more privacy friendly when they have every control? I guess the answer is 0. So even with Fuchia I think it will be worse than Linux.
My guess is that it'd be an OS which would perform tasks Google needs to stay as Google better than Android, and Google may sell these capabilities to devs to further enhance their bottom line.