I created a minimum reproducible test for trying to find what triggers the scanlines issue with the Odyssey G7.
https://nickemanarin.github.io/odyssey-g7-scanlines/
Since these other triggers are similar, we can somewhat conclude that fine meshes are a no-go for the Odyssey G7.
Weird.
https://imgur.com/a/HA73ZJz
https://rog.asus.com/wallpapers
http://www.lagom.nl/lcd-test/inversion.php