I think when making the war movies, especially the WWII movies, the Russian movie industries is the very best, then the South Korean. Sorry, Hollywood is even worse than the Chinese movie makers. But the Chinese movies got a propaganda problem which is seriously censored by the CCP government. The modern Russia, on the contrary, when they made movies about WWII, besides to portray how bravely the Russian soldiers and the common citizens fought against the Nazi Germany invasion, they also used the opportunity to mock the ridiculous Soviet Russia's tight control of their military forces, like the CCP now controls everything. If you watch this movie, you would find such cynical mockery to their former Soviet Communist Party's stupidity. It asked the Russian soldiers to fight for their motherland, but at the same time, punishing those who were against their cruel communist policies.
I absolutely agreed with what the sole review said about this movie, this movie indeed captured me the whole time. The battle scenes are top notched directed, acted, edited, even the music is perfectly synchronized and so relevant with the battle scenes and all the situations. This movie is indeed one of the Best 2nd World War movies. Strongly recommended.
I also would like to recommend the following classic Russian movies for you; they are all great movies, most are about WWII:
Ballad of A Soldier (1959), The Forty-first (1956), The Cranes Are Flying (1957), Battle for Sevastopol (2015), Zvezda (The Star) 2002, The Tank Battalion (1991), Andrei Rublev (1966), Battalion (2015), Blizzard of Souls (The Rifleman) 2019, Fortress of War (2010)