About to pull the trigger, but I'm a coward

I've been reading and seeing lots of tests for monitors from 155hz to 360hz available on my country (Brazil), but I can't get seem to find reviews for the Acer Predator XB273 Gzbmiiprx and the Acer Predator XB253Q GW. But they seem very similar to the LG 27GN750-B.AWZ.

If anyone finds some information to distinguish these 3 monitors or just straight up recommend / talk about it, please do.