Check this [1] HN post from 10 days ago, the first problem listed, "Dual monitors swapped positions" and the cause ("The problem comes from vendors who flash the same exact firmware with the same EDID to multiple monitors in the same batch.") :D

[1] Weird monitor bugs people sent me in the last 5 years (2022) https://news.ycombinator.com/item?id=40038759