The gas use has been similar for the last 10 years. Now you're correct in absolute numbers Germany uses more gas, it has more citizens, more energy intensive industry etc. and yes they are less dependent on Russian gas (most of their gas seems to come from Norway [1], although the second biggest source is Russia). I actually agree making Germany dependent Russian gas was a terrible idea. Germany actually had a unique opportunity in the late 90s early 00s, they could have really pushed for a transition to a mostly renewable energy production, but instead strong lobbying won out. And the lobbyists were the fossil and nuclear sectors (i.e. the large energy corporations). One thing one can see again and again is that the nuclear lobby is never arguing against fossil energy, but only against renewables. The reasons are simply that they largely have common interests, highly centralised energy production, with strongly subsidised plant construction, which guarantee long term profits. Renewables are actually disruptive, because they allow for very distributed energy production putting into the hands of small investors and relatively small construction industry. They threaten the large profits of the old model.
[1] https://www.reddit.com/r/europe/comments/ueipzd/country_of_o...