How did war on the Western Front differ to that on the Eastern Front? (West being Nazis occupying Europe)(WW2)

What were the main differences in the combat experienced between Nazi Germanys battles for the occupation of Central Europe on the Western Front, (i.e. from Poland to France) and that which they experienced when trying to occupy Russia on the Eastern front?
Any answer is helpful. Thanks

The weather. Russian winters can be really brutal and the Germans did not know this

Human life to both sides on the eastern front had little value as both sides considered the other subhuman as opposed to the cultural similarities shared by the Allies and the Axis on the western front where there is evidence of places of historic and cultural importance being spared attack.

From a human perspective you only need to look at the treatment of Prisoners of War (POW) by both sides on the Eastern Front, indeed it was not until well into the 1950's that the Russians released the so called last of the German POW's where POW's on the Western front were generally cared for in line with the terms of the Geneva convention.

From a combat perspective the Western front still had some vestiges of adhering to the rules of war where the Eastern front was pure decimation and a matter of survival.

From what Ive read or seen on TV It seems the fighting on the Russian front was a lot fiercer. also the Nazis treated any civilians on the eastern front very badly and when they were retreating from the Russians they were desperate not to get caught for fear of reprisals against them.

On the western front, the initial attack by Germany left much of the infrastructure intact. This was advantageous for the Germans since they were able to keep supply levels up. Paris was declared an open city, and the Germans walked right in with no destruction at all. Much of the conquered territory in the west was heavily populated, and that which was notwas agriculturally developed. Roads and rail lines were still up and running which made supply and interior movement of troops easier.

Russia is a vast country, and a large part of the land conquered by the Germans was sparsly populated, many small collective farms. As the Russians retreated, they burned everything, leaving the Germans with no foragable food. The Germans advanced rapidly, outrunning their supply lines on the poor or nonexistent roads. They reached Stalingrad, destroyed a large portion of it, and then Russian winter set in. The Russins waged a sniper war in the ruins of Stalingrad, while their forces surrounded and cut off the Germans. No land route existed for resuppy, and the Germans engaged in a futile attempt at air supply. The German 6th Army, under Field Marshall Von Paulus surrendered on January 31, 1943. The other German forces surrendered shortly after, and the Russians equiped with thousands and thousands of T-34 tanks harried the remaining German forces all the way back to the Reichstag.