yeah as people said the first hour is kinda boring and not much happens so fast forward if you are ready to drop out. the second half is a bit better, its like a mash up of horror video games like Resident Evil and Dark Souls. Not much of a story and its all the usual bullshit tropes and super predictable but decently entertaining if completely unbelievable.
I wonder who this movie was made for though, it wasn't scifi enough for me (no real big mysteries) and it doesn't really do most of the horror tropes that are popular with younger horror fans, especially women - Nun, Midsommar, Ring, Barbarian, etc. The movie it mostly feels like is Annihilation but a mediocre, no-depth-at-all version.