https://www.aljazeera.com/news/longform/2023/5/24/satellite-...
And that just from the start of war.
Mariupol probably did see less destruction. But for the actively contested regions, the biggest difference between Russian destruction and Israeli destruction is that the Russians use artillery, which leaves shells of buildings standing, while Israel uses bulldozers that are a lot more thorough in leaving no stone on the other
You can find lots of videos of Russia firing thermobaric weapons into populated areas - you will find none fired by Israel into Gaza. And I don't think that's because IL doesn't have them.
It's exactly the same in Gaza! You basically justified Israel's actions here... Check the distance between Gaza City & Israel border, vs distance beetween Bakhmut & Russia's border. Tell me which one is farther away - I'll wait