Lake05 and that stops them from talking?
Apps that are disabled are prevented from running, and therefore communicating.
Lake05 How can they get updates if they are disabled?
Disabling an app does not prevent it from being updated.
Lake05 do you have your Google play store in the same profile as your open source apps ?
Some of them, yes.
Lake05 Won’t Google play see and track you?
See and track what? How?
It seems like you think Play Store/Services have magical tracking capabilities that allow them to know everything you do in any profile where they are installed. There are some things it can see, yes, but it is not all-knowing. I guess it depends on what information you want to keep private from Google. If the answer is "everything" or "as much as possible," then don't install it.