Areas outside of Israeli control where Israelis are not allowed to go is irrelevant when discussing about whether Israel is an apartheid state or not.
Actually you said
> in the occupied areas Arabs WITH Israeli passports are not allowed to visit certain areas
But in any case, since you also said "multiple sources online" perhaps you can link one so we're talking about something concrete and not just vague insinuations.
It is trivial to find more sources than the one I already mentioned, there is a very very long wikipedia article as a starting point. I'm afraid you do not care about seeing what is going on, you care about dismissing opposing opinions.
https://old.reddit.com/r/IsraelPalestine/comments/v8s88z/ara...
https://www.quora.com/Why-can-t-Israeli-Arabs-live-in-Israel...
Sounds like you have more than enough to get started.
Or maybe stay with reddit and quora. Up to you.