"Russia is claiming it as theirs for the last four years and has largely rebuilt it" is not really counter-evidence to destruction during the fighting

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

Also the Palestinian buildings are practically made of cardboard because that's all the supplies they can get (because mysteriously supplies keep not arriving, oh well, no way to know why they don't)

No, Mariupol was just one (arguably not the best) example answer to the original question, "Does it look the same in the Ukraine? I haven’t seen any footage of entire cities leveled like this."