The short version? Go see 1917. It's a solid war movie. If I had a quibble it's that they compressed nearly 24 hours into just a few while at the same time, except for a period of unconsciousness, showing you the events in two apparently continuous shots. There was certainly less overt antiwar messaging than I would have expected.
The background music, while not Zimmer, is similar to his more recent soundscape-style work.
From a technical perspective, it's an amazing achievement of steadicam work.