"Metro Exodus", like the series as a whole, frustrates me to no end. Parts of it are truly amazing (like the Volga, Yamantau, Dead City and Interlude chapters); but it fluctuates in quality, and as the game goes on, the cracks in level design and writing start becoming very noticable. The main problem it comes down to is a lack of polish: it is no doubt a step up from previous games, but it's still not quite there. Often, dialogue that is meant to feel snappy ends up being awkward, and moments that are meant to be immersive fall apart because of inconsistent mechanics.
I don't need every game to be polished to perfection, but a game that is going for this level of immersion desperately needs it. If "Exodus" had that, this would be a 10/10 for me. As it is, the game is solid, but it's also lesser than the sum of its great parts, and that...is a real shame.