It is well-known that Putin is a history fan and inevitably, has now brought Napoleon and 1812 into the current Ukraine war. https://www.youtube.com/shorts/TKoafzm1WMU
Thing is, wiser heads in Vienna in the first decade of the 19th century were saying that steady Russian expansionism was going to be the long term problem. Cue George Santayana.
I think that the long threads are the most interesting. We can see that decisions and debates from our period resonate to the current day. The collapse of Poland and decline of the Ottoman empire gave Russia space for expansion. Then in 1799, Thugut brought Russian troops into central Europe for the first time, giving Russia ideas about how far their sphere of influence extended.
It is common to see Europe from Napoleon's perspective, where Russia the great power at the other end of Europe. He did a deal dividing Europe into two spheres at Tilsit. But if you look at the position from Vienna, there is a very different debate over whether Russia or France is the real long-term threat. Austria had only taken Polish territory in the First Partition as the alternative was Russia washing up against the Carpathian passes, (now the border between Hungary and western Ukraine.