Well, Russia also held a "referendum" in those four oblasts (I put it in quotes because the international community views them as illegitimate). Also, just to clarify, Russia actually 𝘢𝘯𝘯𝘦𝘹𝘦𝘥 them, not just occupied them because they're at war. In the case of the latter, I couldn't find any `military=danger_area` polygon or something similar covering those four oblasts (or Kursk or Crimea) like there is in Gaza. I read that Ukraine did manage to recapture one of the four oblast's capital cities, though.
"[The four oblasts] are under occupation, not recognized by Russia. Also, it is an ongoing war." What do you mean Russia wouldn't recognize its own illegitimate annexation of four Ukrainian oblasts?