Yes, that's literally true (or was before the Russian army visited). The ambient radiation in the Chernobyl Exclusion Zone, which is all you'd see on a map, is only slightly elevated. The main risk there is of disturbing the ground or abandoned debris and exposing much more dangerous material buried just below the surface.

There were tourist trips into the exclusion zone around Pripyat (closest town to the plant) all the time until Covid. I'm guessing they haven't restarted because of the war now, but plenty of people visited with no ill effects.